Explanation of Terms Used in Entomology (part 1)

EXPLANATION OF TERMS USED IN ENTOMOLOGY

PREPARED BY JOHN B. SMITH, Sc.D.

Professor of Entomology in Rutgers College, Etc.

PUBLISHED BY THE BROOKLYN ENTOMOLOGICAL SOCIETY

BROOKLYN, N. Y.

1906

PRESS OF THE NEW ERA PRINTING COMPANY

LANCASTER, PA.

{Scanner's note: This book is about a century old at the time of scanning. I found it in the discard pile of a local university library. I find the book to be of exceptional historical interest in the insights it gives into the development of early modern entomological science. It also is of practical value as a source for terms that are obscure to modern users because they are no longer current. Such works are extremely difficult to rid of all errors, so treat any really suspicious looking passages with reserve. I have avoided the use of non-alphabetic symbols as far as I could, for example Greek letters and male, female and hermaphroditic symbols, but if you encounter difficulties, those might be the source. Also, the colour table at the end is not really much good for anything beyond general impressions; not only are the paper and ink old, but between my scanner and your screen or printer, there is room for too much misinterpretation of precise colour, for anyone to take it seriously. }

FOREWORD.

EXPLANATORY.

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

ADDENDA.

EXPLANATION OF PLATES.

COLOR PLATE.

FOREWORD.

When, some time since, in consequence of continuing demands, the Brooklyn Entomological Society resolved to publish a new edition of its Explanation of Terms used in Entomology, and entrusted the writer and two associates with the task of preparing the same, it was believed that a little revision of definitions, the dropping of a few obsolete terms and the addition of a few lately proposed, would be all that was necessary. It was to be a light task to fill idle time in summer, report to be made in fall. Two years have passed since that time; the associates have dropped by the way; the manuscript contains five times the number of terms in the original "Explanation." and if it is published now, it is not because I believe it to be complete; but because I do not believe it can be made complete except as the result of criticism and voluntary addition by specialists throughout the country.

It is twenty-six years since the original list was published and nothing can better illustrate the advances made than a comparison between the old and the new Glossary. No one realizes better than I the fact that as students have increased in each order, each has followed an independent line of research, absolutely without regard to the work done elsewhere. In consequence, we have several terms for the same thing in many cases and, in an equal number, several meanings to the same term. As no one man can now-a-days cover the entire field of Entomology, it goes without saying that I was compelled to rely partly upon books and partly upon the good nature of correspondents to make the work even approximately complete.

The first notable contribution came from Professor Justus W. Folsom, of Urbana, Illinois, who sent me over 2000 cards of terms collected by himself and his assistants, and these added materially at the beginning of the work. A number of correspondents were good enough to send in lists of terms in Coleoptera, Lepidoptera, Orthoptera, Hemiptera and Neuroptera, and to refer me to literature where explanations of other special terms could be found.

After the cards were so far advanced as to warrant a preliminary manuscript, Dr. Philip P. Calvert of the University of Pennsylvania. Mr. Nathan Banks of Washington, D. C., and Mr. C. W. Johnson of the Boston Society of Natural History went carefully over the entire work and by their criticisms and additions contributed materially to such merit as it possesses. To these gentlemen and to the many others not specifically mentioned I give thanks for their assistance, and if there have not been more co-workers it has been only because of the time element that seems to demand the best that is ready, rather than a delay to secure perfection.

It would be interesting to go at length into the history of the correspondence to determine what sort of terms should or should not be included and to bring out the hopeless divergencies existing ; but all that is important here is to state briefly what has been included and what omitted.

Common English terms even if descriptive, when used in their ordinary dictionary sense, have not been included as a rule; but this is subject to many exceptions. Latin terms and derivatives, even if used in their usual sense have been generally included; but compounds made up of adequately defined descriptive terms are generally omitted. Adverbial or adjective forms have been omitted whenever it has been considered safe, and so have terms prefixed by sub-, supra- and the like, indicating degree or position. In doubtful cases the terms have been included and defined. All terms of venation are, so far as possible, reduced to the Comstock system which is the only one that has been satisfactorily worked out for all orders, and a series of figures is added to explain this system so far as seems necessary. It has not been considered feasible to determine the proper use of terms applied differently in different orders or families; that is scarcely within the scope of a work of this kind.

Terms used in embryological and histological study have been included only so far as seemed necessary to an understanding of the general works, and no attempt has been made to cover the terms applied to musculature and other details of microscopic structure : this has seemed rather to be outside of the scope of the present essay.

All color terms are reduced so far as possible to terms of the Windsor and Newton system of water colors which are standard in the English-speaking world, and the color plate shows solid blocks of those colors that seem necessary to explain all modifications except metallics, blacks and whites. {Scanner's note: color plate may be excluded, partly because it is in poor condition.}

The figures illustrating body structures and other details have been drawn under my supervision by Mr. John A. Grossbeck, and are meant to be guides merely—else the glossary would exceed its scope.

In the admission that the work is incomplete, no apology is intended for its publication; it is merely a statement of fact to encourage constructive rather than destructive criticism. It is hoped that those who note errors or omissions will communicate them to the writer so that when another edition is needed, as it will be before many years are past, a standard work may be possible.

JOHN B. SMITH, Sc.D.

New Brunswick, N.J. April 1906

EXPLANATORY.

Definitions of general application are as a rule given first, where more than one is necessary ; next those of limited use, and finally the specific meaning in each order in which there is any notable difference.

Where a word has more than one ending, the difference is given after a hyphen which represents the stem word: e. g., ametabola -ous; the latter in place of ametabolous, which indicates the possession of the characters peculiar to the ametabola. Where there is an English and a Latin ending, the former is usually given with the word and the other is added: e. g., aequilate -us, instead of aequilatus, there being no difference in the application. Usually the singular form of the word is first given, and the plural ending is added ; e. g.,

antenna -ae,

cenchrus -ri,

desideratum -ata ;

but occasionally, when the plural is more commonly used, e. g., epimera -eron, this is reversed and the singular ending is added: when the two are different in form, e. g., foot and feet, the words are given separately, and so when there is a difference in the application, as in

uncus and unci.

In the definition of color terms the words in brackets refer to the equivalent color as named on the plate, or the combination needed to produce it.

The names in parentheses are those of the writers whose definitions are used, or who have used the term in the sense defined. In the terms of venation, these parentheses occur most frequently.

Most of the signs and abbreviations are those in common use

:= equal to, or the same as ;

q. v., which see ;

pl., plural ; abb., abbreviated.

The abbreviated names are:

Comst., for Comstock ; Coq., for Coquillett;
Meig., for Meigen ; Nort., for Norton:
O. S., for Osten-Sacken: and Will. for Williston.

A

A: prefix, is privative; wanting or without.

Ab: off; away from.

Abbreviated: cut short; not of usual length.

Abdomen: the third or posterior division of the insect body: consists normally of nine or ten apparent segments, but actual number is a mooted question: bears no functional legs in the adult stage.

Abdominal: belonging or pertaining to the abdomen.

Abdominal feet: see pro-legs.

Abdominal groove: the concave lobe of the inner margin of secondaries enveloping the abdomen beneath, in some butterflies.

Abdominal pouch: in female Parnassiids, a sac-like ventral cavity, formed by material secreted during copulation.

Abductor: applied to muscles that open out or extend an appendage or draw it away from the body: see adductor.

Abductor mandibulae: the muscle that opens the mandibles.

Aberrant: unusual; out of the ordinary course.

Aberration: a form that departs in some striking way from the normal type; either single or occurring rarely, at irregular intervals.

Abiogenesis: spontaneous generation.

Abnormal: outside the usual range or course; not normal.

Aborted: a structure developed so as to be unfit for its normal function obsolete or atrophied.

Abraded: scraped or rubbed.

Abrupt: suddenly or without gradation.

Abscissus: cut off squarely, with a straight margin.

Absconditus: hidden, concealed; retracted into another.

Acalyptrata: those muscid flies in which alulae are absent or rudimentary.

Acanthus: a spine, spur or prickle.

Acaudal -ate: without a tail.

Accessory: added, or in addition to.

Accessory carinae: in Orthoptera the lateral carinae of the face.

Accessory cell: a cell not commonly present in the group; in some orders of definite location as, e.g. in Lepidoptera, usually a small cell at the end of the subcosta, giving rise directly or indirectly to veins 7 to 10:= 1st radius 2 (Comst.); = areole.

Accessory glands: any glands opening into the ducts of the reproductive system.

Accessory sac: a glandular structure of the female reproductive system containing a sticky secretion.

Accessory subcostal vein: the vein given off from the subcosta and branching toward the apex of the wing in Perlidae.

Aceous or aceus: suffix; similar to, or of the nature of.

Acephalous: without a head.

Acerata: arthropods without true antennae Arachnids and Limulus

Acetabular caps: Hemiptera; the coxal cavity.

Acetabuliform: like a shallow saucer with more or less incurved sides.

Acetabulum: the cavity into which an appendage is articulated; specifically the coxal cavity, - q.v.; also applied to a cup-like cavity in the sucking mouth of maggots.

Achreioptera: ordinal term proposed for the coleopterous family Platypsyllidae.

Achromatic: free from color; tissue that does not stain readily.

Acicular: needle-shaped; with a long, slender point.

Aciculate: a surface that appears as if scratched with a needle.

Acidotheca: the pupal sheath of the ovipositor.

Acini: granulations, like those on a blackberry: the terminal secreting tubes of glands.

Acinose -ous: a surface set with acini.

Acone: applied to compound eyes in which the individual ocelli have no crystalline cone or lens; see eucone. {Scanner's note: this is no longer a valid usage for the word "ocelli". Currently the term is. See "ocellus" and "ommatidium".}

Acoustic nerve: connects the auditory pits or other organs of hearing with special ganglia.

Acridophagus: preying and feeding on grasshoppers.

Acrostichal bristles: Diptera; two rows of bristles on the middle of the dorsum; specifically, minute peculiar bristles on the dorso-central region of Dolichopodidae.

Aculeata: Hymenoptera; the stingers, including bees and wasps.

Aculeate: prickly; armed with short, sharp spines; specifically, in Hymenoptera furnished with a sting which is a modified ovipositor and connected with a poison sac.

Aculeus -ei: a prickle; a small sharp point; specifically, an ovipositor, especially when sting-like, as in Hymenoptera; in male Tipulidae a slender, horny, often curved and pointed piece, projected when the forceps is open.

Acuminate: tapering to a long point.

Acupunctate: a surface with fine punctures as if made with a needle.

Acutangulate: forming, or meeting in an acute angle.

Acute: pointed: terminating in or forming less than a right angle.

Acutilingual: with a sharp pointed tongue or mouth structure, as in some bees.

Acutilingues: bees with a short pointed tongue: see obtusilingues.

Addorsal: close to but not quite on the middle of the dorsum.

Addorsal line: in caterpillars, is longitudinal, a little to one side of the dorsal and between it and the subdorsal line.

Adductor: applied to muscles that draw an appendage to the body or bring parts into apposition: see abductor.

Adductor mandibulae: the muscle that draws in or closes the mandible.

Adeloceratous: with concealed antennae: see cryptocerata.

Adephagous: belonging to the Adephaga: pentamerous, predatory, terrestrial beetles with filiform antennae and predatory habits: see hydradephagous.

Adherent: attached or clinging to.

Adipose: fat or fatty: see fat-body.

Adiscota: insects that develop into adults without forming imaginal discs; see discota.

Adminicula: supports or props: the spinous processes on the abdomen of boring and burrowing pupae.

Adnate: adjoining; adhering or growing together: closely connected.

Adpressed: laid or pressed to; contiguous.

Adsperse -us: with markings of closely crowded small spots.

Adsternal: situated next or close to the sternum.

Adult: the stage when an insect is sexually mature and ready to reproduce normally.

Aduncate -cus, -catus: a part gradually bent through its whole extent.

Adventitious: occurring accidentally, out of the ordinary course, without apparent reason.

Adventral line: in caterpillars, extends along the under side between the middle and the base of legs.

Adventral tubercle: on the abdominal segments of caterpillars on the inner base of the leg, and correspondingly on the apodal segments; constant: is number VIII of the abdominal series (Dyar).

Aeneous -eus: shining bronze or brassy.

Aenescent: becoming or appearing bronzed or brassy.

Aequale: equal.

Aequilate-us: of equal breadth throughout.

Aerial: living in the air; applied to flying insects.

Aeriductus: a spiracle: the tracheal, gill-like structures of aquatic larvae: more specifically the tail-like extensions of rat-tailed maggots and some aquatic Hemiptera.

Aeroscepsin: an indefinite sense of perception supposed to be located in the antenna.

Aeroscepsy: The faculty of observing atmospheric changes: supposed to be located in the antenna.

Aerostats: a pair of large air sacs at base of abdomen in Diptera.

Aeruginose -us: the color of verdigris [blue green].

Aestival: occurring in summer.

Aestivation: applied to summer dormancy.

Afferent: carrying inwardly or toward the centre.

Affinis: related to: similar in structure or development.

Afternose: a triangular piece below antennae and above clypeus: see postclypeus.

Agamic -ous: reproducing without union with a male.

Agamogenesis: reproduction without fertilization by a male: see parthenogenesis; gamogenesis.

Agglomerate: heaped or massed together.

Agglutinate: stuck or glued together; welded into one mass.

Aggregated: crowded together as closely as possible.

Agnathous: without jaws; specifically applied to those Neuropteroid series in which the mouth structures are obsolescent.

Aileron: the scale covering the base of primaries in some insects; see tegulae in Diptera = alula and squama, q.v.

Air-sacs or vesicles: pouch-like expansions of tracheal tubes in heavy insects, capable of inflation and supposed to lessen specific gravity.

Air-tube: a respiratory siphon.

Ala -ae: a wing or wings.

Alar appendage: see alulet.

Alar frenum: a small ligament crossing the supra-alar groove toward the root of the wing: Hymenoptera.

Alary: relating to the wings: applied also to the wing muscles of heart.

Alate -us: winged; with lobes similar to wings in appearance though not necessarily in function.

Albi, albus: white.

Albicans: formed or made of white.

Albidus: white with dusky tinge.

Albinic: of the character of an albino.

Albinism: that condition in which there is an absence of color or a whitening in a form usually colored.

Albino: a colorless individual of a species that is normally colored.

Albumen: the white of egg or the substances in the tissues which have the same characteristics.

Albumin: the characteristic substance forming the white of egg.

Albuminoid: like or of the character of albumen.

Alimentary canal: the digestive tract as a whole; begins at the mouth and extends through the body to the anus.

Alitrunk: that part of the thorax to which the wings are attached: in many Hymenoptera, includes the 1st abdominal segment.

Alizarine: a transparent, orange red [alizar crimson].

Alleghanian faunal area: is that part of the transition zone comprising the greater part of New England, s. e. Ontario, New York, Pennsylvania, Michigan, Wisconsin, Minnesota, eastern N. Dakota, n. e. S. Dakota, and the Alleghanies from Pennsylvania to Georgia.

Alligate -us: fastened or suspended by a thread; like the chrysalis of Papilio, etc.

Alliogenesis: when the development includes an alternation of generations (q.v.), as in Cynipids.

Alluring glands: glandular structures diffusing an odor supposed to be attractive to the opposite sex.

Allux: next to the last joint of tarsus; in Rhynchophora.

Alpine zone: = arctic zone, q.v.

Alternation of generations: where a species that occurs in both sexes periodically produces only parthenogenetic females; the latter, in turn, producing the sexed form; occurs in Cynipidae and some Homoptera: see heterogeny.

Altus: above: applied to a part raised above the usual level.

Alulae: Diptera; a pair of membranous scales above the halteres, behind the root of the wing, one above or before the other; the anterior attached to the wing and moving with it, the posterior fastened to the thorax and stationary; see calyptra; squama; squamula; lobulus; axillary lobe; aileron; scale; tegulae: Coleoptera; a membranous appendage of the elytra which prevents dislocation.

Alulet: Diptera: the lobe at basal posterior part of wing; = alar appendage; posterior lobe: and has been used as = alula.

Alutaceous: rather pale leather brown [burnt sienna]: covered with minute cracks, like the human skin.

Alveolate: furnished with cells: deeply pitted.

Alveolus: a cell, like that of a honeycomb.

Amber: a transparent, clear, pale yellowish brown; of the color of amber [a mixture of pale cadmium yellow and a little burnt umber].

Ambient vein: Diptera; the costal vein when it extends beyond the apex and practically margins the wing.

Ambrosia: bee-bread: the food cultures of certain Scolytid beetles.

Ambulatoria: that series of Orthoptera in which the legs are fitted for walking only; Phasmids.

Ambulatorial: fitted for walking or making progress on the surface.

Ambulatorial setae: specialized hairs or bristles, situated on the ventral segments of the abdomen of some Coleoptera. Ambulatory: moves by walking; formed for walking.

Ametabola -ous: insects without obvious metamorphoses, in which the larvae usually resemble the adult and the pupae are active.

Ametabolion: an insect that has no distinct metamorphoses.

Amethystine -us: bright blue with a reddish admixture; clear like an amethyst [between mauve and lilac].

Amnion: the inner of the two membranes enveloping the embryo.

Amnion cavity: a tube-like insinking from the ventral plate of the embryo, extending cephalad.

Amnion fold: the extensions of the amnion which close the mouth of the amnion cavity in the embryo.

Amnios: the first cast skin of the larva when a moult occurs almost immediately after emergence from the egg.

Amoebiform: having the appearance or properties of an amoeba.

Amoeboid: applied to movements similar to those of an amoeba.

Amphibiotica: those pseudoneuropterous insects whose larvae are aquatic but whose imagos are aerial; stone-flies; May-flies; dragon- flies.

Amphimixis: the mingling of the germ plasm of two individuals.

Amphiodont: applied to those forms of male Lucanids bearing mandibles of medium size, between teleodont and priodont; =mesodont.

Amphipneustic: applied to larvae which have the spiracles confined to the anterior and terminal segments.

Ample: broad; large; sufficient in size.

Amplected: when the head is received into a concavity of the prothorax; e.g. Hister.

Ampliate -us: moderately dilated.

Amplificatus: dilated; enlarged.

Ampulla: Orthoptera; an extensile sac between head and prothorax used by the young in escaping from oötheca, and later, in molting: Heteroptera; a blister-like enlargement at the middle of the anterior margin of the pro-thorax.

Ampulla-like: flask-shaped; applied to a vascular sac at base of antennae which aids in the blood circulation of head and its appendages.

Amygdaliform: almond-shaped.

Anabolic: the constructive change from food material to animal tissue: see katabolic.

Anal: pertaining or attached to the last segment of the abdomen; the point or angle of any wing or other appendage that is near to or at any time reaches the tip of the abdomen.

Anal angle: on the secondaries is that angle nearest the end of the abdomen when the wings are expanded: the angle between the inner and outer margin of any wing; = hind angle of primaries.

Anal appendages: generally; applied to the external genital parts.

Anal area: Orthoptera and Neuroptera; the hinder or anal portion of a wing within the anal vein = axillary area.

Anal cells: the spaces between the anal veins (Comst.): in Diptera, anal cell (Will.), the space nearest the body, inclosed by the 5th and 6th veins sometimes called the third basal cell (Coq.) = 1st anal (Comst.).

Anal field: Orthoptera; that area on the tegmina corresponding to the anal area of the secondaries.

Anal filaments: see caudal setae.

Anal fork: applied to the cerci of Coleopterous larvae.

Anal foot: applied to the tip of the body in larval Chironomids, which is modified to serve as a hold-fast.

Anal furrow: in wings, lies between the cubitus and 1st anal vein.

Anal glands: appendages of the alimentary canal, opening into it near the posterior extremity, secreting either a lubricant, a silk-gum, or some other specialized material.

Anal horns: in Collembola, are small processes borne on the last abdominal segment.

Anal lobes: in Lecaniinae, a pair of small, triangular, hinged processes forming a valve which covers the anal orifice.

Anal loop: Odonata; the loop formed by the angulations of 1st anal vein.

Analogous: similar in function; but differing in origin and structure: e.g. the wings of birds and insects: see homologous.

Anal operculum: the dorsal arch of the 10th abdominal segment; in caterpillars = supra-anal plate, q.v.

Anal organs: Collembola; the two modified hairs arising from a tubercle ventro-cephalad of the anus and usually curving caudo-dorsad.

Anal orifice: see anus.

Anal papilla: Collembola; see anal tubercle.

Anal plate: in caterpillars, the shield-like covering of the dorsum of the last segment: in the embryonic larva the 11th tergite.

Anal ring: a chitinous ring encircling the anus in many Coccidae.

Anal scale: one of the lateral processes of the ovipositor in Cynipidae, lying outside and below the lateral scale.

Anal siphon: the anal breathing tube of Culicid larvae.

Anal style: a slender process on or within the terminal segment of the abdomen in Homoptera.

Anal tubercle: Collembola; the tubercle bearing the anal organs: = anal papilla.

Anal tubercles: a pair of prominent, rounded or conical processes, situate one on each side of the anus in certain Coccids.

Anal valves: see podical plates.

Anal veins: those longitudinal unbranched veins extending from base to outer margin below the cubitus; the first anal, also termed vena dividens, q.v., is the 6th of the series starting from the base, and it may be followed by several others which are numbered in order to the inner margin.

Anastomosing: inosculating or running into each other.

Anastomosis: a running together; usually applied to wing veins, often to markings; sometimes used like stigma, q.v.; also in Neuroptera, a series of cross-veinlets nearly in one row; a connecting series of veinlets.

Anceps: two-edged; similar to ensiform, q.v.

Ancestral: primitive; inherited from an earlier form or ancestor.

Anchor process: = breastbone, q.v.

Anchylosed: grown together at a joint.

Ancipital: with two opposite edges or angles.

Androconia: specialized, usually small scales of peculiar form, found localized on some male butterflies.

Androgynous: uniting the characters of both sexes.

Aneurose: a wing without veins except near costa.

Angle: of tegmina, "is the longitudinal ridge formed along the interno-median by the sudden flexure from the horizontal to the vertical portion when closed."

Angular area: Hym.; the posterior of the three areas on the metanotum between the lateral and pleural carinae; = 3rd pleural area.

Angulate: forming an angle; when two margins meet in an angle.

Angulose: having angles.

Angulus: forming an angle: = angulate.

Angustatus: narrowed; narrowly drawn out.

Anisoptera: that division of the Odonata in which the hind wings are wider, especially at base, than the front wings.

Annectent: applied to connecting or intermediate forms.

Annelet or annellus: Hym.; small ring-joints between scape and funicle.

Annulate: ringed or marked with colored bands.

Annulet: a small or narrow ring or annulus.

Annuliform: in the form of rings or segments.

Annulus: a ring encircling a joint, segment, spot or mark; sometimes applied to the inner ring encircling the mouth opening.

Annulus antennalis: the ring sclerite of the head into which the basal segment of the antennae is inserted; = antennal sclerite.

Anomalous: unusual; departing widely from the usual type.

Anoplura: wingless species without metamorphosis, habits epizoötic, thoracic segments similarly developed: a composite aggregation which includes both the biting and sucking lice.

Ante: before; used as a prefix.

Ante-alar sinus: Odonata; a grooved area extending transversely immediately in front of the base of each front wing.

Ante-apical: just before the apex.

Ante-clypeus: Odonata; the lower of the two divisions of the clypeus; the inferior half of the clypeus whenever there is any apparent line of demarcation: = clypeus-anterior; infra-clypeus; rhinarium; second clypeus.

Ante-coxal piece: Coleoptera; that portion of the metasternum lying in front of the posterior coxae, often passing between them and meeting the abdomen of mandible, is the lateral sclerite of the clypeus; - one on each side.

Ante-cubital: see ante-nodal, cross veins and spaces.

Ante-furca: an internal forked process from the prosternum, to which muscles are attached.

Ante-humeral: relating to the space just before origin of wings.

Ante-humeral stripe: Odonata; a discolored stripe, approximately parallel to, but to the inner side of the humeral suture, q.v.

Antemedial line: = t. a. line, q.v.

Antemedian: Diptera; applied to leg-bristles situated before the middle.

Antenna -ae: two jointed, sensory organs, borne, one on each side of the head, commonly termed horns or feelers.

Antenna-cleaner: a fringed excavation on the interior base of the 1st segment of the anterior tarsi of Hymenoptera which, when covered by the movable process from the end of the tibia, forms an opening through which the antennae may be drawn: similar structures are on the fore tibiae of Carabid beetles: tarsal claws are also used by various insects to clean antennae.

Antennal appendage: in Mallophaga, a projecting process of the 1st or 3rd segment in the male.

Antennal formula: in Coccidae; made by enumerating the antennal joints in the order of their length, beginning with the longest and bracketing together those of the same length.

Antennal fossa -w: grooves or cavities in which antennae are located or concealed: = a. grooves: antennary fossa.

Antennal fovea: Diptera; a groove or grooves in the middle of the face as though for the lodgment of the antennae; bounded on the sides by the facial ridges.

Antennal foveolae: Orthoptera; the pits between frontal costa and lateral carinae, in which the antennae are inserted.

Antennal grooves: see antennal fossa.

Antennal lobes: of brain, see deuto-cerebrum.

Antennal organs: in Collembola are sensory structures on the distal segment.

Antennal process: Diptera; the frontal protuberance upon which the antennae are inserted.

Antennal sclerite: see annulus antennalis.

Antennal segment: the second or deutocerebral segment of head.

Antennary fossa: see antennal fossa.

Antennary furrow: in Mallophaga, grooves on the under side of the head in which the antennae lie.

Antenniferous: bearing antennae.

Antenniform: made up like, or having the appearance of antennae.

Antennule: a small antennae or feeler-like process.

Antenodal cells: Odonata; in Agrionidae the cells included between the short sector (M 4 Comst.) and the upper sector of the triangle (Cu 1, Comst.), and between the quadrilateral (or quadrangle) and the vein descending from the nodus.

Antenodal cross veins: Odonata; extend between costa and subcosta, and between subcosta and media, from the base to the nodus, forming the ante-nodal or ante-cubital cells: = ante-cubital.

Antenodal costal spaces: Odonata; the cells between costa and subcosta, from the base to the nodus: = ante-cubitals.

Anteocular: the region just before the eye; specifically applied in Collembola to a peculiar structure of undefined function situated in front of the eyes: = prostemmatic.

Antepectus: the lower surface of the prothorax.

Antepenultimate: the last but two.

Anterior: in front; before; in Dip., that face of the leg which is visible from the front when the leg is laterally extended and bristles on that face are anterior.

Anterior branch of third vein, in Diptera (Will.), = radius 4 (Comst.).

Anterior field: Orthoptera; of tegmina, see costal field.

Anterior intercalary vein: Diptera; = media 2 (Comst.); of Loew = discoidal vein.

Anterior lamina: Odonata; the anterior sternal border of abdominal segment 2, modified to form the front margin of the genital pocket.

Anterior lobe: Orthoptera; see lobes.

Anterior squama: = antisquama; q.v.

Anterior stigmatal tubercle: on thoracic and abdominal segment of caterpillars; varies from substigmatal to stigmatal anterior; sometimes united to IV: it is V of the abdominal series, IV of the thorax (Dyar).

Anterior trapezoidal tubercle: on thoracic and abdominal segment of caterpillars addorsal, anterior, always present, rarely united with II: it is I of the abdominal series, la of the thorax (Dyar).

Antero: to the front; anteriorly.

Antero-dorsal: Diptera; applied to leg bristles at the meeting of anterior and dorsal face.

Antero-ventral: Diptera; applied to leg bristles at the meeting of anterior and ventral face.

Anthobian: feeding on flowers; applied to certain lamellicorn Coleoptera in which the labium extends beyond the mentum.

Anthophila: Hymenoptera; species in which the basal joint of the hind tarsus is dilated and pubescent; the bees.

Anthracine -us: coal black; black with a bluish tinge.

Anti: over against; opposite; contrary: (prefix).

Anticus: frontal; belonging to or directed toward the front.

Antigeny: opposition or antagonism of the sexes; embracing all forms of secondary sexual diversity.

Antipodal costal spaces: Odonata; the cells between costa and subcosta, from the base to the modus; = antecubitals.

Antisquama: Diptera; the upper of the two which moves with the wings; = antitegula; see also squama.

Antitegula: see antisquama.

Antlia: the spiral tongue or haustellum of Lepidoptera.

Antliata: insects with a sucking mouth; originally applied to Lepidoptera and Diptera, later and more specifically to Diptera.

Antrorse -sum: directed toward the front.

Anus: the end of the digestive tract, through which the food remnants are passed: the posterior part of the individual: specifically, in Coccidae, a more or less circular opening on the dorsal surface of the pygidium, varying in location as regards the circumgenital gland orifices: = anal orifice.

Aorta: the anterior, narrow part of the heart, opening into the head.

Apex: that part of any joint or segment opposite the base by which it is attached; that point of a wing furthest removed from base or at the end of the costal area.

Aphaniptera: indistinctly winged; see Siphonaptera.

Aphideine: see aphidilutein.

Aphidilutein: a yellowish fluid found in plant lice, changed to a rich violet by alkaline reagents.

Apical: at, near or pertaining to the apex; usually of a wing.

Apical area: see petiolar area.

Apical areas: apical cells in some Homoptera.

Apical cell: a cell near or at the apex of a wing; in Hymenoptera (Norton) = medial (Comst.); outer apical cell = 2d medial 2 (Comst.); inner apical cell = medial 3 (Comst.).

Apical cells or cellules: Trichoptera; the series of cells along the outer margin of wing from pterostigma to arculus.

Apically: toward or directed toward the apex.

Apical sector: one of the longitudinal veins in the apical part of wing of Neuroptera.

Apical transverse carina: Hymenoptera; crosses the metanotum behind middle and separates the median from the posterior cells or areas.

Apiculis: an erect, fleshy short point.

Apiculate: covered with fleshy, short points.

Apivorous: devouring bees.

Apneustic: without an open tracheal system; respiration is through the skin or through tracheal gills.

Apocrita: = petiolate, q.v.

Apodal: with single, simple tubercles instead of feet, in larvae; without feet = apodous.

Apode: one that has no feet.

Apodema: a conspicuous transverse band crossing the thorax in front of the scutellum in male Coccidae.

Apodeme: an inwardly directed process to which a muscle is attached.

Apodous: without feet; see apodal.

Apolar: without differentiated poles; without apparent radiating processes applied to cells.

Apophysis: the lower of the two joints of trochanter in ditrocha trochanterellus; the dorso-lateral metathoracic spines in Hymenoptera; also used as synonymous with ento-thorax.

Apophystegal plates: Orthoptera; flattened blade or plate-like sclerites covering the gonapophyses.

Apotypes: = hypotypes; q.v.

Appendage -es: any part, piece or organ attached by a joint to the body or to any other main structure.

Appendice -es: any attached body or small process; an appendix.

Appendicial: supplementary: relating to appendices.

Appendicle: a small appendix: in some bees, a small sclerite at tip of labrum.

Appendiculate: bearing appendages; said of antennae where the joints have articulated appendages; of tarsal claws that have membranous processes at base.

Appendiculate cell: Hymenoptera; is on costa just beyond 2d radius 1 and 2.

Appendigerous: bearing appendages.

Appendix: a supplementary or additional piece or part, added to or attached to another: in Heteroptera; = cuneus, q.v.

Appress -ed: to press against; closely applied to.

Approximate: near to; applies to antennae inserted close together.

Aptera: those that have no wings: an ordinal term formerly employed for fleas, lice and other wingless forms now distributed in other orders: later used for the simplest or lowest insects, including the Thysanura and Collembola.

Apterodicera: wingless, with two antennae.

Apterous: without wings.

Apterygogenea: those insects that are wingless in all stages and presumed to be descended from ancestors which never were winged: see pterygogenea.

Apterygota: = apterygogenea; see pterygote.

Aquamarine -us: sea green: pale green with predominant blue and a little gray [nile green].

Aquatic: living wholly in water.

Aquatilia: cryptocerous Hemiptera of truly aquatic habit.

Arachnoideous: resembling or similar to a cobweb.

Araneiform: spider-like in appearance.

Arboreal: living in, on, or among trees.

Arborescent: branching like the twigs of a tree.

Archaic: ancient; no longer dominant; of the olden time.

Archiptera: those Neuroptera with incomplete metamorphosis = Pseudo-neuroptera.

Arctic Zone: is that part of the boreal region above the limit of tree growth in the U. S. is restricted to the area above timber line on the summits of high mountains: = alpine.

Arcuate: curved like a bow: = arcuate.

Arcuato-emarginate: with a bow-like or curved excision.

Arculus: Odonata; a small cross vein between radius and cubitus near the base, leaving an elongate triangle between them: Trichoptera; a point, often hyaline, on the forewing where the cubitus (or post cubitus) runs into the margin: in Homoptera; a cross-veinlet nearly reaching posterior margin at same point as in Trichoptera: in other orders applied to a cross-vein in similar position, apparently giving rise to the median.

Arcus: a bow; part of a circle; but less than one half.

Area mediastinal, scapularis and ulnaris: the areas in front of the mediastinal, the scapular, and the ulnar veins in Orthoptera.

Areae or Areolae: wing cells or spaces between veins.

Arenicolous: applied to species frequenting sandy areas.

Arenose: a surface that is sandy or gritty.

Areola: a small cell on the wings of certain Hemiptera: see also areae Hymenoptera; the central of three median areas on the metanotum: = 2d median area; upper median area.

Areolate: with small defined areas, like a network.

Areole: Lepidoptera; see accessory cell, cell and cellule.

Areolet: one of the small spaces between veins of net-veined insects.

Argentate: shining, silvery white.

Argenteous: silvery.

Argillaceous: of the texture, appearance or color of clay.

Arid: Applied to regions in which the normal rainfall is insufficient to produce ordinary farm crops without irrigation, and in which desert conditions prevail: see humid.

Arid transition area: comprises the western part of the Dakotas, northern Montana east of the Rockies, southern Assiniboia, small areas in southern Manitoba and Alberta, the higher parts of the Great Basin and the plateau region generally, the eastern base of Cascade Sierras and local areas in Oregon and California.

Arista: a specialized bristle or process on antennae of certain Diptera.

Aristate: Diptera; that type of antennae that bears an arista: = athericerous.

Aristiform: of the form or appearance of an arista.

Armature: applied to the spinous or chitinous processes on the legs, body or wings; or the corneous parts of genitalic structures.

Armatus: set with spines, claws or other chitinous processes.

Armillate: with a ring or annulus of raised or different tissue.

Arolium -ia: cushion-like pads on the tarsi of many insects: one of the lobes of the pulvillus; in Orthoptera, used only for the terminal pad between the claws: see empodium; pulvillus; palmula; plantula; onychium, paronychium, pseudonychium.

Arquate: see arcuate.

Arrhenotokous: capable of producing male offspring only, as in worker bees and some saw-flies.

Arrhenotoky: parthenogenetic reproduction when the progeny are all males: see thelyotoky and deuterotoky.

Arthrium: Coleoptera; the minute, concealed tarsal joint in pseudotetramera and trimera.

Arthroderm: the outer skin or covering of articulates.

Arthrodial: an articulation that permits motion in any direction.

Arthromere: a body segment or ring: = somite.

Arthropleure: the side piece of an arthromere.

Arthropods: all those articulates having jointed legs.

Article: a joint or segment.

Articular pan: the cup or dish-like depression forming the socket into which an articulation is fitted.

Articulate: that branch of the animal kingdom whose members are made up of rings, segments or articulations.

Articulate: divided into joints or segments.

Articulated apex: see clasp filament.

Articulation: the point or place where two parts or segments are joined: also applied to an individual joint or segment.

Articulatory epideme: the partly chitinized membrane by which the wings are attached to the thorax.

Artus: the organs of locomotion generally.

Asexual: applied where the reproductive organs are incompletely developed and eggs or young are produced by cell-budding: = parthenogenetic.

Ash-gray: a mixture of black and white, with a faint orange tinge: like ashes of anthracite coal.

Aspect: indicates the direction to which a surface faces or in which it is viewed; it may be dorsal, ventral, caudal, cephalic or lateral.

Asperities: surface roughenings or dot-like elevations.

Aspersus: rugged, with distinct elevated dots.

Assembling: gathering together; applied when a virgin female is exposed to attract such males as may be near, either to secure a pairing or merely to obtain specimens; also called sembling.

Assurgent: down-curved at base, then upcurved to an erect position.

Asymmetrical: not alike on the two sides; not symmetrical.

Asymmetry: a state of unlikeness in lateral development; absence of symmetry in form or in the development of members.

Ater: deep black; not shining.

Aterimus: the deepest black.

Athericerous: see aristate.

Atom -us: a minute dot or point.

Atomarius: with minute dots or points.

Atrachelia: Coleoptera in which there is no visible constriction between head and prothorax: Rhynchophora and some Heteromera.

Atrium: a chamber just within the spiracle and before the occluding structure to the trachea.

Atrocoeruleus: very deep, blackish, sky-blue.

Atrophied: wasted away; unfit for use.

Atropurpureus: dark purplish, nearly black [an admixture of mauve and black].

Atrous: jet black.

Atrovelutinus: velvety black.

Atrovirens: dark green, approaching blackish [prussian green].

Attenuated: drawn out; slender; tapering.

Attingent: touching.

Atus: suffix; denotes possession of a quality or structure.

Atypic -ical: off type; not of the usual form.

Auchenorhynchus: with the beak issuing from the inferior portion of head, as in Homoptera.

Auditory: relating to the sense of hearing.

Auditory organs: Orthoptera; specialized structures covered by a tense membrane, on the anterior tibia or base of abdomen; any structure that functions as an ear.

Aurantiacus: orange colored; a mixture of yellow and red [chrome orange].

Aurate: with ears or ear-like expansions: also = auratus.

Auratus: golden yellow [pale cadmium yellow].

Aurelia: = chrysalis or pupa; specifically of butterflies.

Aurelian: a lepidopterist.

Aureolate: with a diffused colored ring.

Aureole: a ring of color which is usually diffuse outwardly.

Aureous -eus: gold-colored.

Aurichalceous: brassy yellow.

Auricle -cula: an appendage resembling a little ear; in Odonata the tumescent area at the sides of the second abdominal segment: in Andrenidae, a short membranous process placed laterally on the ligula.

Auricular: applied to the space or cavity surrounding the dorsal vessel.

Auriculate: with an ear-like appendage or, in antennae, with the basal joint distended into a concave, plate-like ear which envelops the rest of the structures.

Auriculo-ventricular: the outer valves of the heart between the auricular space and the chamber.

Auriculo-ventricular openings: are the lateral openings into the heart by means of which the blood is admitted into it.

Auritus: with two ear-like spots or appendages.

Auroral spot: applied to the bright orange colored spot at the apical area of Anthocharis.

Auroreous -eus: red, like the aurora borealis [crimson lake].

Austral: is that faunal region which covers the whole of the United States and Mexico except the boreal mountains and tropical lowlands: divided into transition, upper, lower and gulf strip: see boreal and tropical.

Austroriparian faunal area: that part of lower austral zone covering the greater part of the South Atlantic and Gulf States. Begins near mouth of Chesapeake Bay, covers half or more of Virginia, North and South Carolina, Georgia, Florida, Alabama, all of Mississippi and Louisiana, east Texas, nearly all of Indian Territory, more than half of Arkansas and parts of Oklahoma, s. e. Kansas, so. Missouri, so. Illinois, s. w. corner of Indiana and bottom lands of Kentucky and Tennessee.

Autotype: any specimen identified by the describer as an illustration of his species and compared with the type or co-type.

Auxiliary: additional, or supplementing.

Auxiliary vein: in Diptera (Will.), = subcosta (Comst.).

Axillae: two small, subtriangular sclerites at the lateral basal angles of the meso-scutellum in Proctytripidae.

Axillary: placed in the crotch or angle of origin of two bodies; arising from the angle of ramification.

Axillary area: see anal area.

Axillary calli: see calli axillary.

Axillary cell: in Diptera (Will.), = 2d anal (Comst.).

Axillary excision: = a. incision, q.v.

Axillary incision: Diptera; an incision on inner margin of wing, near base, which separates the alula from the main part.

Axillary lobe: the sclerite covering the base of the wing in Diptera; see also alula and posterior lobe.

Axillary vein: one or two longitudinal veins toward the inner margin from the anal vein (Ephemeridae); a group of several (10-20) radiate veins that occupy the anal field in Orthoptera.

Axis: a small process at base of elytron, upon which it turns.

Azure -eus: clear sky-blue [cobalt blue].

Azygos: unpaired; a structure without a fellow; sometimes applied to an unpaired oviduct specifically the enlarged portion of the vagina at the junction of the oviducts and thus = uterus.

B

Baccate -us: berry-like: applied to bladder-like ovaries from the surface of which the short ovarian tubes arise.

Back: the dorsum or upper surface.

Baculiform: rod or staff-like.

Badius: liver-brown; clearer and lighter than castaneus [dragon's blood].

Baenomere: a leg-bearing (thoracic) segment.

Baenopoda: the thoracic legs.

Baenosome: the thorax.

Balancers: see halteres.

Bald: without hair or other surface vestiture: see bare.

Band: a transverse marking broader than a line.

Bar: a short, straight band of equal width.

Barb: a spine armed with teeth pointing backward.

Barbate: furnished with barbs; hair with spines or spurs directed backward.

Barbated: bearded; in antennae with tufts or fascicles of hair or short bristles on each side of each joint; = brush-like: on the abdomen, with flat tufts at the sides or tip.

Barbule: a small barb, beard or filiform appendage.

Bare: without clothing of any kind: see bald.

Basad: in the direction of or toward the base.

Basal: at or pertaining to the base or point of attachment to or nearest the main body.

Basal area: in wings: that space nearest the point where they are attached to the body: on the metanotum of Hymenoptera, the anterior of the three median cells or areas = 1st median area.

Basal cell: Diptera; st (Will.), = radial 2 (Comst.); 2d (Will.), = media (Comst.); Trichoptera; one, two or three cells enclosed by the branches that form-the post-costal or anal vein: Odonata; an elongate cell between radius and cubitus, just before the arculus.

Basalis: the principal mandibular sclerite, when sclerites are distinguishable, to which all other parts are jointed; corresponds to the stipes in the maxilla.

Basal line: in many Lepidoptera; a transverse line extending half way across the primaries very close to base.

Basal lobe: of culicid genitalia, see claspette.

Basal post-costal vein: in Agrioninae, one of the cubito-anal cross- veins.

Basal segment of clasp: see side piece.

Basal space: that area on the primaries of certain Lepidoptera, between the base and t. a. line (q.v.).

Basal streak: in Noctuid moths, extends from base, through the submedian interspace to the t. a. line.

Basal transverse carina: on the metanotum of Hymenoptera, crosses before middle and separates the anterior from the median areas.

Base: that part of any appendage that is nearest the body: on the thorax that portion nearest the abdomen; on the abdomen that portion nearest the thorax.

Basement membrane: that thin layer of tissue upon which the epithelium rests.

Basilar: of or pertaining to the base.

Basilar cross-vein: Odonata; crosses the basilar space.

Basilar membrane: a thin membrane separating the cones and rods from the optic tract.

Basilar space: Odonata; that area at base of wings, between media and cubitus.

Basi-proboscis: basal third of the flexed proboscis of muscid flies.

Batesian mimicry: see mimicry.

Bathmis: see pterostigma.

Bave: the fluid silk as it is spun by caterpillars.

Beak: any notable prolongation of the front of the head: the snout in Rhynchophora: specifically, the jointed structure covering the lancets in the hemipterous mouth.

Bearded: fringed with hair: see barbated.

Belly: venter; under side of abdomen.

Belonoid: needle-like.

Bi: prefix, means two.

Bi-alar: two-winged; applied to Diptera.

Biarcuate: twice curved.

Biareolate: with two cells or areoles: see bilocular.

Bicaudate: having two tails or anal processes.

Bicolored: with two colors that contrast to some extent.

Bicornute: with two horns or cephalic processes.

Bicuspidate: ending in two points or cusps.

Bidactylate: with two fingers or finger-like processes.

Bidentate: two-toothed.

Biemarginate: twice emarginate; with two excisions.

Bifarious: pointing in opposite directions.

Bifasciate: with two bands or fascia.

Bifid: divided into two parts; split; applied in Coleoptera to tarsal claws which are divided so that the claws lie side by side: see biparted.

Biflabellate: antennae with fan-like process on two sides.

Bifurcate: divided, not over half its length, into two dull points; forked.

Bifurcation: a forking or division into two: the point at which a forking occurs.

Biguttate: with two drop-like spots.

Bijugum: in two pairs.

Bilamellar: divided into two lamina or plates.

Bilateral -eriter: with two equal or symmetrical sides.

Biliary vessels: see malpighian tubules.

Bilineate -us: with two lines.

Bilobate -ed: divided into two lobes.

Binocular: having two cells or compartments: see biareolate.

Bimaculate: with two spots or maculae.

Binate: in pairs: consisting of a single pair.

Binotate: with two rounded spots.

Binus: paired: doubled.

Biogenesis: the production of life from antecedent life.

Biomorphotica: those neuropterous insects in which the pupa is active.

Bionomics: the habits, breeding and adaptations of living forms.

Biophore: an ultimate constituent of germ plasm or hereditary substance.

Bioplasm: formative living matter.

Biparted: profoundly divided into two parts: see bifid.

Bipectinate: antennae having comb-like teeth or processes on Beach side of each joint.

Bipupillate: an ocellate spot with two pupils, of the same or different in color.

Biradiate: consisting of, or with two rays or spokes.

Biramose -ous: having two branches or doubled appendages.

Biseriately: arranged in double rows or series.

Biserrate: doubly saw-toothed; with a saw tooth on each side of each antennal joint.

Bisetose -ous: with two bristle-like or setaceous appendages.

Bisinuate: a margin or line with two sinuations or incisions.

Bituberculate: with two distinct tubercles.

Biuncinnate: with two hooks.

Bivalve -ed: applied to mouth parts consisting of two parts or valves united to form a tube.

Bivittate: with two longitudinal stripes or vittae.

Blade: of maxilla, see lacinia.

Blastem: a nucleated protoplasmic layer preceding the blastoderm.

Blastoderm: the germinal membrane from which the organs of the embryo are formed.

Blastodermic cells: are those forming the blastoderm.

Blastogenic: relating to or inherent in the germ or blast.

Blastophore: the primitive mouth of the embryo.

Blind: without eyes: applied also to an ocellate spot without a pupil.

Bloom: a fine violet dusting similar to that on plums. {Scanner's note: See Pruinous.}

Blotch: a large irregular spot or mark: large whitish membrane between abdomen and thorax in certain saw-flies.

Blunt: not sharp; obtuse at the edge or tip.

Body: the trunk: usually applied to the thorax only; rarely to the abdomen alone; sometimes to thorax and abdomen combined.

Bombifrons: front of head with a blister-like protuberance.

Bombous: blister-like; spherically enlarged or dilated.

Bombycinous: a very pale yellow like fresh spun silk.

Boreal: from or belonging to the north: is that faunal region that extends from the polar sea southward to near the northern boundary of the United States and farther south occupies a narrow strip along the Pacific Coast and the higher parts of the Sierra-Cascade, Rocky and Alleghany Mountain ranges; divided into Arctic, Hudsonian and Canadian: see austral and tropical.

Borer: applied to an insect or larva that burrows or makes channels in woody or other vegetable tissue.

Botryoidal: clustered like a bunch of grapes.

Bouclier: the pronotum, q.v.

Bouton: a button; the terminal lappet-like process at the tip of the ligula in bees: = spoon.

Brachelytra: with abbreviated wing covers or elytra.

Brachia: the arms: has been applied to raptorial fore-legs.

Brachial: relating to an arm; arm-like.

Brachial cells: Hymenoptera; 1st (Nort.), = costal and subcostal (Comst.) 2d (Nort.), = medial (Comst.); 3d (Nort.), = cubital (Comst.); 4th (Nort.), = 2d anal (Comst.).

Brachial veins: of primaries in Hymenoptera, originate at base, run parallel to inner edge toward anal angle; often connected with the cubital cellules by means of recurrent venules.

Brachium: the fore tibia.

Brachycerous: Diptera; with short, 3-jointed antennae.

Brachypterous: with short or abbreviated wings.

Brachyostomata: brachycerous Diptera with short proboscis.

Brain: that ganglion of the nervous system which lies in the head above the oesophagus; formed of the first three primitive ganglia: see supra-oesophageal.

Branchiae: air tubes or gill-like processes of aquatic larva;.

Branchial: relating to the gills or branchiae.

Branchiate: supplied with gills or bronchia.

Brassy: yellow, with the lustre of metallic brass.

Breast: the under surface of thorax or sternum.

Breast-bone: in Cecidomyid larvae; a horny, more or less elongate process of the under side behind the mouth opening, supposed to represent the labium = anchor process.

Breathing pores: see spiracle.

Brevis: short.

Brides: Homoptera; two pieces on the face, one each side of clypeus and lower part of front.

Bridge: Odonata; a secondary longitudinal vein connecting the radial sector (Comst.) with Mi + 2, apparently forming a continuous part of the radial sector; it is the proximal portion of the subnodal sector of de Selys and Hagen.

Bridge cross veins: Odonata; those cross veins, one or more in number, extending between M1 + 2 and the bridge (in de Selys between principal and subnodal sectors) proximal to the oblique vein.

Brin: the fluid silk thread from each salivary gland.

Bristle: a stiff hair, usually short and blunt.

Broken: interrupted in continuity; as a line or band.

Bronze: the color of old brass.

Brood: all the specimens that hatch at about one time, from eggs laid by one series of parents and which normally mature at about the same time.

Brunneus: a pure reddish dark brown [indian red].

Brush-like: antennae with the joints laterally produced and tufted with short hair or bristles: see barbated.

Buccal: relating to the mouth cavity; rarely to the cheeks.

Buccal appendages: the mouth parts excluding the labrum: see trophi. Buccal cavity: the mouth: = oral cavity.

Buccal fissure: the mouth slit or opening: the opening on each side of the mentum.

Buccate: blown up, distended; especially the cheeks.

Bucculae: little cheeks or distended areas.

Budding: applied to that form of agamic reproduction found in plant lice.

Bulla: a blister or blister-like structure: the shield-like sclerite that closes the opening to the trachea in lamellicorn larvae: in Ephemerida a part of the costal area of the fore wing toward the tip, which is slightly swollen forward and furnished with more cross veins than elsewhere; practically the stigma, q.v.

Bullate: blistered.

Bullule: a small blister.

Bursa: a pouch or sac: a wing pouch in male caddice flies and in connection with a stalked hair pencil.

Bursa copulatrix: the copulatory pouch of the female in some orders; a modification of the vagina.

C

Caducous-us: deciduous; easily detached or shed.

Caecal tubes or pouches: sac, or blind tube-like structures surrounding the chylific ventricle at its junction with the crop, and secreting a digestive ferment.

Caecum: a blind sac or tube-like structure serving as one of the caecal tubes or pouches: see coecum.

Caelate: a surface with plane elevations of varying forms.

Caeruleus -eous: light sky-blue [between lavender and cobalt blue] = coeruleus.

Caerulescent: with a tinge of sky-blue.

Caesius -eous: a pale dull blue-gray [blue-gray].

Caespiticolous: frequenting or living in grassy pastures or lawns.

Calathiform: shaped like a deep bowl.

Calcar -ium; pl. ia: a movable spur or spine-like process: specifically the spines at the apex of a tibia.

Calcarate -us: with a movable spur or spine-like process.

Caliciform: shaped like a cup or calyx.

Calipers: the anal forceps in Dermaptera.

Calli axillary: Odonata; thickenings at the bases of the wings; distinguished as anterior at the base of the costa, and posterior at the base of radius + medius and cubitus: = axillary calli.

Callosity: a thick swollen lump, harder than its surroundings: = callous: also a rather flattened elevation not necessarily harder than the surrounding tissue.

Callous: see callosity.

Callus: a small callosity.

Caltrops spines: the branched and otherwise specialized irritating spines in Limacodid larvae.

Calva: a skull-cap: = epicranium, q.v.

Calx: the distal end of the tibia; the curving basal portion of the first tarsal joint.

Calyculate: applied to antennae, whose cup-shaped joints are so arranged as to fit one into the other.

Calypter: Diptera; the alula or squama when it covers the haltere.

Calyptra: a hood or cap; see alula.

Calyptrate: those flies that have aluke or membranous scales above the halteres.

Calyx: the cap or crown of the mushroom bodies of the procerebrum: see also egg-calyx.

Campanulate: bell-shaped: more or less ventricose at the base and a little recurved at the margin.

Campestral: applied to species inhabiting open fields.

Campodeiform: applied to larval forms which, in their early stages at least, resemble Campodea: = leptitorm.

Canadian zone: is that part of the boreal region comprising the southern part of the great transcontinental coniferous forests of Canada, the northern parts of Maine, New Hampshire and Michigan, and a strip along the Pacific Coast reaching south to Cape Mendocino and the greater part of the high mountains of the United States and Mexico. In the east covers Green. Adirondack and Catskill Mountains and the higher mountains of Pennsylvania, West Virginia, Virginia, western North Carolina and eastern Tennessee. In the Rockies extends continuously from British Columbia to western Wyoming and in the Cascades from British Columbia to southern Oregon with a narrow interruption along the Columbia River.

Canaliculate: channelled; longitudinally grooved, with a deeper concave line in the middle.

Cancellate: cross-barred: latticed: with longitudinal lines decussate by transverse lines.

Canescent: hoary, with more white than gray.

Canine teeth: applied to the sharp and conical teeth of mandibles in predatory species: = dentes caninae.

Cantharidin: the substance that gives the meloid beetles their blistering power composition, C10H12O4 (von Furth).

Canthus: the chitinous process more or less completely dividing the eyes of some insects into an upper and lower half.

Canus: see canescent.

Capillaceous: capilla or hair-like.

Capillaris: a very slender, hair-like tube.

Capillary: long and slender like a hair: antennae in which the joints are long, slender and loosely articulated.

Capillate -us: clothed with long slender hair; = coryphatus.

Capillii: hairs of the head that form a cap as in certain Trichoptera and Tineid Lepidoptera.

Capillitium: the hood-like collar in some Noctuid moths, e.g. Cucullia: see cucullus.

Capitate: with a head: that type of clavate antenna in which the club is abruptly enlarged at tip and forms a spherical mass.

Capitulum: a small head: the enlarged tip of an antenna: the little knob at tip of halteres in Diptera: the labella or lapping tip of the mouth of certain flies.

Capricorn beetle: a Cerambycid or long horned beetle.

Caprification: is that method or process through which the Smyrna figs are fertilized by Blastophaga throughthe medium of wild, inedible or "caprifigs."

Capsular: in the form of a capsule or little cup-like container.

Caput: the head with all its appendages.

Capylus: a hump on the Tupper side of the segments of many larva.

Carabidoid: applied to the second stage of a meloid larva, when it resembles that of a Carabid.

Carbonarius: coal black.

Cardia: the gizzard; q.v.: also applied to the heart.

Cardiac: belonging or relating to the heart.

Cardiac valvule: see oesophageal valve.

Cardinal cell: Odonata; see triangle.

Cardioblasts: a string or row of cells in the embryo giving rise to the heart or dorsal vessel.

Cardio-coelom: that part of the coelom that forms the pericardium.

Cardio-coelomic: applied to the venous openings from the heart to the body cavity.

Cardo, pl. Cardines: the hinge or basal sclerite of the maxilla by means of which it is jointed to the head.

Carina -ae: an elevated ridge or keel, not necessarily high or acute. Carinate: a surface having carinae.

Carinula -ae: a little carina or keel-like ridge; specifically, the longitudinal elevation on the middle of snout in Rhynchophora.

Carinulate: a surface with small and rather numerous carinae.

Cariose -ous: corroded; appearing as if worm-eaten.

Carminate -ed: mixed or tinged with carmine.

Carneous -eus: flesh-colored [salmon with a little carmine].

Carnivorous: a feeder upon flesh food.

Cariose -us: of a soft, fleshy substance.

Carolinian faunal area: that area of the upper austral zone comprising the larger part of the Middle States (except the mountains), s. e. So. Dakota, east. Nebraska, Kansas and part of Oklahoma; nearly all of Iowa, Missouri, Illinois, Indiana, Ohio, Maryland and Delaware; more than half of West Virginia, Kentucky, Tennessee and New Jersey and large areas in Alabama, Georgia, the Carolinas, Virginia, Pennsylvania, New York, Michigan and South Ontario: extends along Atlantic Coast from near mouth of Chesapeake Bay to Southern Connecticut and sends narrow arms up the valleys of the Hudson and Connecticut. A narrow arm follows the east shore of Lake Michigan to Grand Traverse Bay.

Carpus: the pterostigma of Odonata: the extremity of the radius and cubitus of the primaries: that point in the wings at which they are tratsversely folded.

Cartilaginous: of the consistency of cartilage or gristle.

Caruncle: a soft, naked, fleshy excrescence or protuberance.

Caryophylleous: nut or clove brown [Indian red].

Castaneous: chestnut brown; bright red-brown [dragon's blood with a slight admixture of vermilion].

Castes: the various forms or kinds of matured individuals among social insects as workers, soldiers, queens, etc.

Cataphracted: invested with a hard callous skin, or with scales closely united. Catch: in Collembola, = tenaculum, q.v.

Catenate: with longitudinal connected elevations like links in a chain.

Catenulate: like catenate; but the links are smaller.

Caterpillar: the term applied to the larvae of Lepidoptera.

Catervatum: by heaps.

Caudal: the tail: any process resembling a tail: the pointed end of the abdomen in plant lice: any extension of the anal segment or appendage terminating the abdomen.

Caudad: toward the posterior end of the body, along the median line.

Caudal: pertaining to the posterior or anal extremity.

Caudal setae: long, thread-like processes at the end of the abdomen in many europterous and some other insects; = anal filaments.

Caudate: with tail-like extensions or processes.

Caudo-cephalic: in a line from the head to the tail.

Caudo-dorsad: directed upward and toward the tail.

Caudula -ae: a little tail.

Caul: the fatty mass of larvae from which the organs of the future adult were supposed to develop: = epiploon.

Cauliculus: the larger of the two stalks supporting the calyx of the mushroom body.

Caulis: the funicle of antenna: the corneous basal part of jaws.

Cavate: hollowed out; cave-like.

Cavernicolous: cave-inhabiting.

Cavernous: divided into small spaces or little caverns.

Cavity -as: a hollow space or opening.

Cecidium: a gall.

Cell: any space between or bounded by veins: in the Comstock system the cells derive their names from the vein forming the Tupper margin: e.g. all just below the radius are radial cells; and they are numbered from the base outward, as radial 1, 2, etc.: the living unit; protoplasm differentiated into cytoplasm and nucleus, from which units all but the lowest plants and animals are developed by division and consequent increase into a multicellular condition: a compartment or division of a nest or honey-comb.

Cellule: a portion of a wing included between veins; usually applied to a small area completely inclosed, rarely to interspaces where no closed area is formed.

Cenchrus -rib: minute, often white marks, or membranous spaces on the metanotum of some Hymenoptera.

Cenogonous: producing young at one time oviparously, at another viviparously as in plant-lice.

Centimeter: abb. Cm.: = .01 meter = .394 inch; 2.54 Cm. = one inch.

Centrad: toward the centre or interior.

Central foveola: see median foveola.

Centrolecithal: applied to eggs in which the food yolk is central.

Centrosome: a spherical body that appears outside the nucleus of a cell.

Cephalad: toward the head, along the central line of the body.

Cephalic: belonging or attached to the head; directed toward the head.

Cephalic bristles: Diptera; specialized bristles occurring on the head.

Cephalic foramen: the posterior or occipital foramen of head through which the dorsal vessel, oesophagus, salivary ducts and ventral nerve cords pass from head to prothorax.

Cephalization: concentration toward the head.

Cephalomere: one of the head segments of an arthropod.

Cephalophragm: a v-shaped partition which divides the head of some Orthoptera, into an anterior and posterior chamber.

Cephalon: the head.

Cephalosome: the head as one of the three regions.

Cephalotheca: the head covering in the pupal stage.

Cephalotheca: the united head and thorax of arachnids and crustacea {Scanner's note: nowadays this term is used little if at all. It does not seem ever to have been popular. Instead the terms cephalothorax or prosoma are widely used.} : that portion of an obtect pupa covering head and thorax: the anterior segments of larva that have no obviously separated head.

Cerago: bee-bread.

Ceratheca or Ceratotheca: that portion of the pupal shell that envelops the antenna.

Cerci: two lateral anal appendages; usually short, jointed, antenna- like, developed from the eleventh abdominal segment of the embryo; sometimes unjointed and specialized into forceps or other processes.

Cercopoda: jointed foot-like appendages of the last abdominal segment; also applied like cerci.

Cercus: see cerci.

Cerebellum: has been applied to the sub-esophageal ganglion.

Cerebrum: the supra-oesophageal ganglion.

Cernuous: bent: with the apex bent downward.

Cervical: relating or belonging to the neck.

Cervical foramen: in coleopterous larvae - occipital foramen.

Cervical sclerites: small ebitinous plates on the membrane between head and thorax: see jugular sclerites.

Cervical shield: the ebitinous plate on the prothorax of caterpillars just behind the head: = prothorax shield.

Cerviculate: with a long neck or neck-like portion.

Ceryinus: reddish, deer-gray [pale cadmium yellow and Indian red].

Cervix: the upper part of the neck; = crag: in Diptera; that part of the occiput lying over the junction of the head, i.e. between the vertex and neck.

Cespitose: matted together.

Chaetophorous: applied to bristle-bearing flies.

Chaetotaxy: the science dealing with the arrangement and nomenclature of the bristles on the body of insects.

Chagrined: see shagreened.

Chalastrogastra: the saw-flies: a group of Hymenoptera.

Chalceous: brassy in color or appearance.

Chalybeate: steely in appearance.

Chalybeous: metallic steel blue.

Channelled: a surface, with deep grooves or channels.

Chaperon: =clypeus or clypeus anterior.

Chaplet: a little crown; a circle of hooks or other small processes terminating a member or appendage.

Character: a quality of form, color or structure.

Cheek: see gena.

Chela: the terminal portion of a limb bearing a lateral movable claw like that of a crab; specifically applied to the feet in some Parasitica in which the opposable claw forms a clasping structure.

Chelate: bearing a cheat or claw; applied when claws are capable of being drawn down or back upon the last tarsal joint.

Chiasma: an X-like crossing of nerve fibers.

Chirotype: a specimen upon which a manuscript name is based.

Chitin: the material forming the hard parts of the insect body; it is a secretion (or a metamorphosis?) of the epidermis, differing from horn by its insolubility in boiling liquor potassae: = elytra, entomolin.

Chitinogenous: applied to that layer of epidermal cells which secretes the chitin.

Chitinization: the process of depositing or filling with chitin.

Chitinized: filled in with or hardened by chitin.

Chitinous: composed of chitine {Scanner's comment: sic} or like it in texture: as a color term is amber yellow.

Chlorophane: an oily, greenish yellow pigment found in insects.

Chlorophyll: the green coloring matter of plants; one of the substances found in the blood of insects.

Chordotonal: responsive to vibrations; applied to the ear-like structures in Orthoptera,.

Chorion: the shell or covering membrane of an insect egg.

Chromatin: the minute granules that make up the chromoplasm of a cell nucleus.

Chromosome: one of the segments into which the chromoplasmic filaments of a cell nucleus breaks up just before indirect division.

Chrysalis or -id: applied specifically to the intermedial stage between larva and adult in butterflies: see pupa.

Chrysargyrus: silvery gilt.

Chyle: the food-mass after it has passed through the guard and is mixed with the secretions of the salivary glands and caecal structures, ready to be assimilated.

Chylific ventricle: the true stomach in which the chyle is prepared and digestion begins.

Cibarian: referring to the mouth parts.

Cicatricose: a surface having scars with elevated margins like those of small-pox.

Cicatrix: a scar: an elevated, rigid spot.

Cilia: fringes; series of moderate or thin hair arranged in tufts or single lines; thin scattered hair on a surface or margin.

Ciliate: fringed: set with even, parallel hairs or soft bristles.

Cilium, pl. Cilia: q.v.

Cimicine: an oily fluid of disagreeable odor secreted by certain Heteroptera and used as a means of defense.

Cimier: the head crest in Pierid chrysalids.

Cinetus: with a colored band:= cingulatus.

Cinereous: ash-colored; gray tinged with blackish [ultra ash gray]. Cinerescent: ashen in color or appearance.

Cingula -um: a colored band or bands.

Circulate -us: having a cingulum or collar: see also cinetus.

Cinnabarine: [vermilion red].

Cinnamomeous: cinnamon brown [burnt sienna].

Cinema: see Thysanura, of which this forms a group including the bristle-tails, and for which it has been used as an equivalent.

Circinal: spirally rolled like a watch-spring or a butterfly tongue.

Circiter: about, or round-about.

Circular: round like a circle.

Circumgenital glands: small circular glands with an excretory orifice at tip, disposed in groups about the genital orifice in Diaspinae.

Circumoesophageal commissures: those cords or nerve fibres connecting the suboesophageal ganglion with the main trunk of nervous system.

Circumsepted: with a vein all around the wing.

Citrate: antennae with very long, curled lateral branches which may or may not be ciliated; see plumose.

Cirrose -us: with somewhat dense curled hair.

Cirrus: a curled lock of hair placed on a thin stalk.

Citrine -us: lemon yellow [chrome yellow].

Cladocerous: with branched horns or antennae.

Clasper: a chitinized process, free or attached to the inner sides of harpes, valves or other lateral pieces, serving to hold the female parts during copulation: = the harpers of some authors.

Claspette: in genitalia of male culicids, the inner basal lobe of side piece; q.v.

Clasp-filament: in male genitalia of culicids the articulated appendage or terminal segment of side-piece or clasp; sometimes bears an articulated point or apex and then = articulated apex.

Class: a division of the animal kingdom lower than a sub-kingdom and higher than an order: e.g. the "Class Insecta."

Classification: is the systematic arrangement of insects (or other animals or plants) in series showing their relation or agreement in structure, life habits or other characters forming the basis of the "classification."

Clathrate: latticed or lattice-like in appearance.

Claustrum: the structure uniting the wings in flight, whether by hooks, by a thickening of the margin, or by a jugum.

Clava: a club; the enlarged apical joints of a clubbed antenna: = clavola.

Claval suture: Hemiptera; at the base of hemelytra, separating the clavus.

Clavate: clubbed: thickening gradually toward the tip.

Clavate hairs: in Collembola, = tenent hairs.

Clavicornia: that series of beetles having the antennae more or less distinctly enlarged or clubbed at tip.

Clavicular lobe: Homoptera; that portion of hind wing behind anal veins.

Claviform: club-like in form; specifically, in Noctuid moths an elongate spot or mark extending from the t. a. line through the submedian interspace, toward and sometimes to the t.p. line.

Clavola: see clava.

Clavus: the club of an antenna lava and clavola: in Heteroptera, the oblong sclerite at the base of the inferior margin of the hemelytra: the knob at the end of the stigmal or radial veins in certain Hymenoptera.

Claws: the claw or hook-like structures at the end of the foot or tarsus.

Cleavage: see segmentation of egg.

Cleft: split: partly divided, longitudinally: in Coleopteran applied to claws so divided that the parts lie one above the other.

Clintheriform: shaped like a plate. Cloaca: see rectum.

Clubbed: see clavate.

Clypeal suture: marks the division between clypeus and epicranium.

Clypeate: shield-like in form.

Clypeate constriction: applied when a surface is drawn in from the sides so as to produce a shield or saddle-like form.

Clypeo-frontal suture: = clypeal suture.

Clypeus: that portion of the head before or below the front, to which the labrum is attached anteriorly; in Diptera often visible below the margin of the mouth in front, as a more or less visor-shaped piece:= epistoma.

Clypeus-anterior: see ante-clypeus.

Clypeus posterior: see post-clypeus.

Coactus: condensed; of a short stout form.

Coadapted: formed so as to work together to one end; as the mandible and maxilla in Chrysopids, etc.

Coadunate: joined together at base; two or more joined together; said of elytra when permanently united at the suture.

Coagulate: to congeal; to change from a fluid to a jelly.

Coagulum: a clotted mass, as of blood.

Coalescent: united or grown together.

Coarctate: contracted: compacted: applied to that form of pupa in which all the members of the future adult are concealed by a thickened, usually cylindric case or covering, which is often the hardened skin of the larva: beginning with a narrow base, then dilated and thickened.

Cocardes: retractile vesicular bodies on each side of the thorax in certain Malachidae.

Coccineous: cochineal red; dark red [carmine].

Cochleiformis: formed like a snail shell.

Cochleate: spirally twisted like a screw or a univalve shell.

Cocoon: a covering, composed partly or wholly of silk or other viscid fibre, spun or constructed by many larvae as a protection to the pupa.

Cocoon-breaker: structures or processes of the pupa, often on the head, by means of which it works its way out of the cocoon.

Coecal: ending blindly, or in a closed tube or pouch.

Coecum: a blind sac or tube: applied to a series of appendages opening into the alimentary canal at the junction of the gizzard and chylific ventricle: see caecum; the two are used interchangeably.

Coeloblast: the endoderm in the narrower sense.

Coelom: the body cavity.

Coelomic cavity: the space between the viscera and the body wall.

Coelom-sac: the cavity containing the viscera: in embryology one of a pair of closed sacs, arising in the mesoderm of each segment of the embryo and giving rise to more or less of the coelom of the adult.

Coenogonous: oviparous at one season of the year, ovoviviparous at another, as in Aphididae.

Coeruleus -eous: sky-blue: see caeruleus.

Coincident: when two wing veins run together or lie, one in continuation of the other so as to appear like one.

Coleoptera: sheath-winged: an order with the primaries coriaceous, used as a cover only, meeting in a straight line dorsally; mouth mandibulate; pro-thorax free; transformation complete: the beetles: the term has also been applied to the two elytra together.

Collar: in general any structure between the head and thorax: specifically, in Hymenoptera, the neck; in Diptera, may mean the neck, the sclerites attached to the thorax, the thorax itself, or its processes (ante furca): in Coleoptera, is the narrowed thorax; in Lepidoptera, applied to the sclerites attached to the thorax and which shield the neck.

Collembola: an ordinal term applied to species which are apterous; have no metamorphoses; have variably developed abdominal saltatorial appendages and a peculiar ventral tube at base: the spring-tails.

Colleterial gland: see Colleterium.

Colleterium: a glandular structure accessory to the oviduct, secreting the viscid material used in cementing the eggs together.

Collophore: the sucker-like organ extended from the underside of the abdomen in Collembola.

Collum: the neck or collar: the slender connection between head and thorax in Hymenoptera and Diptera; in Coleoptera, the posterior, narrow part of the head or even the thorax: loosely used.

Colon: the large intestine; that usually enlarged portion of the alimentary canal before the rectum.

Columella: a little rod, pillar or central axis.

Columnar: cylindric, but tapering toward one end.

Comate -us: only the upper part of head, or vertex, covered with hair. Commensal: one who eats at another's table: applied to species that feed on the surplus supply of another, without destroying the owner of the supply.

Commensalism: applied to this manner of living and eating together.

Comminute: to grind up fine: to reduce to minute particles.

Commissure: the nerves connecting two ganglia: the point of meeting or union of two bodies: a bridge connecting two bodies or structures; e.g. tracheal tubes.

Common: of frequent occurrence: occurring on two adjacent parts: a band or fascia is common when it crosses both primaries and secondaries.

Communal: applied to life or dwelling in colonies like ants and bees.

Comose: ending in a tuft or brush.

Complanate: compressed: flattened above and below: = deplanate.

Complemental: applied to sexed forms in the Termitidae, capable of reproduction, but which do not reach the winged stage; the females are less fertile than the forms that become winged and several may be used in one nest to replace a lost queen or mature female.

Complicant: when one elytron extends over the other and partially covers it.

Complicate: longitudinally laid in folds: intricate as opposed to simple.

Component: one part of a combined whole.

Compound: made up of many similar or dissimilar parts.

Compressed: flattened laterally.

Concatenate: linked together in a chain-like series.

Concave: hollowed out; the interior of a sphere as opposed to the outer or convex surface: concave veins are those that occupy the bottoms of troughs or grooves on the upper surface of a wing; see convex veins.

Concavo-convex: hollowed out or concave on one surface, rounded or convex on the other; like a small segment of a hollow sphere.

Concentrated: gathered together at one point; intensified or strengthened by evaporation.

Conchate: applied to the shell-like inflation of the auricle in the cephalic tibia of Orthoptera.

Concinne: neat; fine.

Concolorous: of the same general color.

Concretion: a massing together of parts or particles.

Concurrent: applied to a vein which arises separately, runs into another and does-not again separate.

Conduplicate: doubled or folded together.

Condyle: a process which articulates the base of the mandible to the head: in general any process by means of which an appendage is articulated into a pan or cavity.

Confertim: closely clustered or crowded.

Conflect: crowded; clustered; opposed to sparse.

Confluent: running together; as of two macula when united in one outline.

Confused: a marking with indefinite outlines: a running together as of lines and spots without definite pattern.

Congener: a species belonging to the same genus.

Congeneric: applied to a species agreeing in all characters of generic value with others compared with it.

Congested: heaped together; crowded: distended.

Conglobate: gathered together in a ball or sphere.

Conglobate gland: a glandular appendage of male sexual organs in Orthoptera, opening upon one of the external structures.

Conglomerate: congregated; massed together.

Conic -al: cylindrical, with a flat base, tapering to a point.

Conico-acuminate: in the form of a long, pointed cone.

Coniferous: a surface which bears cone-like processes.

Conjugate: to bring together in pairs: consisting of a single pair. Conjugation: the union of pairs; usually applied to the merging of the male and female elements.

Conjunctiva: the membrane uniting the abdominal sclerites.

Conjunctivus: a mandibular sclerite between the molar and basalis.

Conjunctura: the articulation of a wing to the thorax.

Connate: united at base, or along the whole length.

Connexivum: the prominent abdominal margin of Het., at junction of dorsal and ventral plates: also used like pulmonarium, q.v.

Connivent: converging: approaching together: wings so folded in repose that they unite perfectly at their corresponding margins.

Consperse: irregularly dotted or sprinkled.

Conspicuous: striking: easily seen at a glance.

Conspurcatus: confusedly sprinkled with discolored or dark spots.

Constituent: a part or element of a whole.

Constricted: drawn in: narrowed medially and dilated toward the extremities.

Contiguous: so near together as to touch.

Contorted: twisted: obliquely incumbent upon each other.

Contour: the outline or periphery.

Contract -ed: to draw or drawn together: to reduce, or reduced in size by contraction.

Contractile: that which may be drawn together or contracted or which has the power of contracting.

Contrasting: appearing in sharp relief or contrast; as one color or marking against another.

Converging: approaching each other toward the tip.

Convergence: the approaching or drawing together at tips.

Convex: the outer curved surface of a segment of a sphere; opposed to concave: convex veins are those which occupy the summits of ridges on the upper surface of - wing; see concave veins.

Convolute: rolled or twisted spirally: also applied to wings when they are wrapped around the body.

Coprophagus: feeding on excrement or on decaying vegetable matter of an excrementitious character.

Copula, Copulation: the act of sexual union.

Copulate: to unite in sexual intercourse.

Copulation chamber: a chamber or cell excavated by certain Scolytid beetles in their burrows, in which copulation takes place: = rammel-kammer.

Coralline: a pale pinkish red [salmon].

Corbel: an ovate area at the distal end of the tibia in Coleoptera, surrounded by a fringe of minute bristles; when the articular cavity is on the side, above the tip, the corbel is closed; when the cavity is at the extreme tip, the corbel is open.

Corbicula -um: a concave, smooth space, edged by a fringe of hairs arising from the margins of the posterior tibiae in bees, forming the pollen basket its function is to hold the collected pollen in place.

Corbiculate: having corbicula.

Cordate: heart-shaped; triangular, with the corners of the base rounded: not necessarily emarginate at the middle of base.

Cordiform: = cordate.

Coriaceo-reticulate: with impressed reticulations giving a leather-like appearance.

Coriaceous: leather-like: thick, tough and somewhat rigid.

Coriarious: leather-like in sculpture or texture.

Corium: the elongate middle section of the hemelytra which extends from base to membrane below the embolium.

Cornea: the outer surface of the compound eye as a whole, and of each individual facet.

Corneal lenses: are the individual lens-like structures of which the cornea of the compound eye is composed.

Corneous: of a horny or chitinous substance; resembling horn in texture.

Cornicles: the honey tubes in plant-lice: = corniculus.

Corniculi: the little horny tips or pieces of the ovipositor in Orthoptera; see valves.

Corniculus -i: = cornicles; honey-tubes; q.v.

Corniform: like the horn of an ox: a long, mucronate or pointed process.

Cornute -us: having horns or horn-like processes.

Corona: a crown or crown-like processes.

Coronate: with a crown-like tip or termination.

Coronet: a small crown or corona.

Coronula: a circle or semicircle of spines at the apex of the tibia.

Corpus: the body as a whole.

Corpus adiposum: the mass of fat tissue often found in larvae.

Corpuscle: a small cell; usually applied to blood cells.

Correlate: to bring together into relation or correspondence.

Correlated: derived from the same ancestral form: said of two or more features or qualities which bear a direct or an inverse relation to each other, but without implying a relation of cause and effect.

Correlative: of a correlated nature; see correlated.

Corrode: to eat away gradually, as by rust or decay.

Corrodentia: an ordinal term meaning gnawers: net-veined or wingless: mandibulate, mouth formed for gnawing; transformation incomplete; thorax incompletely agglutinated: = Psocoptera: includes Termitidae, Psocidae and Mallophaga. {Scanner's comment: These four groups are now placed in totally separate orders, and not families as these names imply}

Corrugated: wrinkled; with alternate ridges and channels.

Corselet: the thorax in Coleoptera.

Cortical: relating to the cortex or outer skin.

Corticinus: bark-like in sculpture, texture or color [vandyke brown].

Corvinus: crow-black; deep, shining black with a greenish lustre.

Coryphatus: = capillatus.

Corysterium: an abdominal glandular structure in certain females, secreting a glutinous covering for the eggs.

Cosmopolitan: species that occur throughout most of the world.

Cosmotropical: species that occur throughout the tropics.

Costa: any elevated ridge that is rounded at its crest: the thickened anterior margin of any wing, but usually the primaries: in Comstock, the vein extending along the anterior margin of the wing from base to the point of junction with subcosta.

Costal area: the area behind costal vein; see also, costal field.

Costal cell: the area inclosed between the costal and subcostal veins: in the plural, Comstock, are all the cells anteriorly margined by the costa; in Hymenoptera (Norton), includes the 1st, 2d and subcostal; of Packard, the 3d costal = 2d radial 1, and radial 2: in Diptera (Will.), it is the 2d costal.

Costal field: Orthoptera; that region of the tegmina adjacent to the anterior margin or costa: = anterior field.

Costal fold: in the males of some Hesperidae, a membranous flap that may be opened to expose the androconia.

Costal margin: the anterior margin of a wing whether it is really costate or not.

Costal membrane: Hymenoptera; the surface of wing in front of costal vein.

Costal vein: Lepidoptera; runs close to and parallel with the costal margin, extending from base to the margin before the apex; always simple and often absent in the secondaries; is vein 12 of the numerical series on primaries; vein 8 on secondaries: = subcosta (Comst.).

Costate: ribbed; marked with elevated thickened lines.

Costula: Hymenoptera; a small ridge separating the externo-median meta-thoracic area into two parts.

Costulatus: less prominently ribbed than costate.

Cotyla: the articular pan; the cup or socket of a ball and socket joint.

Cotypes: are all the specimens before the describer when a species is named, no single one being selected as the type: the type in such case equals the sum of the cotypes: see paratype.

Coxa -ae: the basal segment of the leg, by means of which it is articulated to the body.

Coxal cavity: the opening or space in which the Coxa articulates; in Coleoptera the cavity is open when the epimera do not extend to the sternum; closed or entire when the epimera reach the sternum or join medially as in Rhynchophora; the cavities are separated when the prosternum extends between them, confluent when it does not: see acetabulum.

Coxal glands: eversible glandular structures at base of legs; well developed in some Thysanurans, modified variously in higher orders.

Coxal stylets: short, leg-like, jointed appendages on the underside of the abdominal segments in Thysanura.

Crag: the neck: = cervix.

Cranium: the head or skull except the neck; sometimes limited to the fixed parts above the clypeo-frontal suture.

Crassus: thick; tumid.

Crateriform: like a shallow funnel or deep bowl.

Creber: closely set.

Cremaster: a stout spine, process or hooked area at the hind end of pupae in Lepidoptera.

Crenate: scalloped, with rounded teeth.

Crenulate: with small scallops, evenly rounded and rather deeply curved.

Crepitation: a crackling sound or the production of such as by discharge of vapor or "bombarding": a cracking or creaking.

Crepuscular: active or flying at dusk.

Crescentiform: like a lunule or crescent.

Crescentric: lunulate.

Crest: a prominent, longitudinal carina on the upper surface of any part of the head or body.

Crested: see cristate.

Cretaceous: chalky white: the third, uppermost and latest of the three great divisions of the mesozoic or secondary rocks.

Cribrate: pierced with closely set, small holes.

Cribriform: with perforations like those of a sieve.

Crineous: dark-brown, with a slight admixture of yellow and gray.

Crinite -us: with tufts of long thin hair: see lanuginose.

Crispate -us: with a wrinkled or fluted margin.

Crista: a ridge or crest.

Cristate: with a prominent carina or crest on the upper surface::= crested.

Cristiform: in the form of a sharp ridge or crest.

Cristula: a small crest.

Cristulate: with little crescent-like ridges or crests.

Croceous: saffron yellow; yellow with an admixture of red [pale cadmium yellow].

Crocus: =croceous.

Crook: the hook or recurved tip of the antenna in Hesperidae.

Crop: the dilated portion of the alimentary canal behind the gullet which serves to receive and hold the food previous to its slower passage through the digestive tract: = ingluvies.

Crotchets: the curved spines or hooks on the prolegs of caterpillars and on the cremaster of pupae.

Crown: the top of head in Lepidoptera; also used as = coronet or corona.

Cruciate: shaped like a cross; applied to wings when the inner margins lie one over the other; or to incumbent wings that overlie only at the apex: in Diptera, applied to bristles when they cross in direction.

Cruciato-complicatus: folded crosswise: incumbent wings when the inner margins overlap; not well distinguished from cruciate.

Crura: the legs or, more specifically, the thighs.

Crura cerebri: two large cords that connect the supra- with the sub-oesophageal ganglion.

Crus: a leg or leg-like structure.

Crustaceous: hard, like the shell of a crab.

Crypto: hidden, concealed.

Cryptocerata: a division of Heteroptera with small antennae concealed in a groove under the bead: = adeloceratous: see gymnocerata.

Cryptogastra: with the venter or belly covered or concealed.

Cryptopentamera: feet 5-jointed, the 4th joint small and concealed.

Cryptotetramera: feet 4-jointed, one of them small and concealed.

Cryptothorax: a supposed thoracic ring between meso- and meta-thorax.

Crypts: minute secretory follicles or cavities: specifically, large gland- like structures between the epithelial cells in chylific ventricle.

Crystalline: transparent, like crystal.

Crystalline cone: a conical structure below the cornea, imbedded in pigment cells of the compound eye: also termed Crystalline lens.

Ctenidium: a comb-like structure occurring on any part of an insect.

Cubital: referring or belonging to the cubits.

Cubital cell: the wing area between the cubits and anal vein; in the plural, all the cells bounded anteriorly by the cubits or its branches (Comst.); in Diptera (Schiner), = radial 3 (Comst.), = 3d posterior cell (Loew); in Hymenoptera (Norton), = radial 3, 4 and 5 (Comst.).

Cubital forks: the branching or points of separation of the branches of the cubits.

Cubital nerve or vein: see cubits.

Cubitus: of Comstock, is the 5th in the series of longitudinal veins extending from base, and usually two branched before reaching outer margin: in Orthoptera; = the internomedian and ulnar: in Neuroptera, a main longitudinal vein next behind the medius and before the anal: the tibia of the anterior leg.

Cuckoo spit: liquid in the form of bubbles produced by members of the family Cercopidae and which often conceals the producer.

Cucullate: hooded; somewhat hood-shaped.

Cucullus: a hood: see capillitium.

Cuilleron: see alula.

Culicifuge: any preparation for driving away gnats or mosquitoes.

Culmen: the longitudinal carina of a caterpillar.

Cultellus: one of the blade-like lancets in piercing flies: = the mandibles of some authors.

Cultrate -iform: shaped like a pruning knife.

Cumulate: in groups or heaps.

Cumulus: a group or heap; as of cells in a developing ovum.

Cuneate, Cuneiform: wedge-shaped; elongate triangular.

Cuneus: Hymenoptera; the small triangular area at the end of the embolium of hemelytra: Odonata, the small triangle of the vertex between the compound eyes.

Cupreous: the metallic red of pure shining copper.

Cupules: the sucker-like processes covering the under surface of the tarsi in male Dytiscidce.

Cupuliform: cup-shaped: like a little cup: = cyathiform.

Cursoria: in Orthoptera, that series in which the legs are formed for running (roaches, etc.).

Cursorial: formed for running.

Curvate: curved.

Curvinervate: wings with the veins distinctly curved, like some Psocidae.

Cusp -is: a pointed process; sometimes at the margin of a wing.

Cuspidate: prickly pointed; ending in a sharp point; with an acuminated point ending in a bristle.

Custodite -us: guarded: a body in an envelope.

Cuticle: the outer skin or skin layer.

Cuticula: = cuticle: specifically applied to the outer or chitinized layer: see epidermis and hypodermis.

Cyaneous: pure dark blue: indigo blue [French blue].

Cyanescent: with a deep bluish tinge or shading.

Cyanogenic: applied to repugnatorial glands in myriapods and sometimes in insects.

Cyathiform: obconical and concave; cup-shaped: = cupuliform.

Cyatotheca: the cover of the thorax in the pupa.

Cycle: a round or circle, e.g. of development; a life cycle.

Cyclorrhapha: that section of Diptera in which the adult escapes from the hardened pupal case by pushing off a lid or covering: see orthorrhapha. Cyclorrhaphous: circular seamed.

Cydariform: globose, but truncated at two opposite sides.

Cylindrical: in the form of a cylinder or tube; round, elongate, of equal diameter throughout.

Cymbiform: boat-shaped: a concave disc with elevated margin; navicular.

Cytoplasm: the protoplasm of a cell exclusive of nucleus; the cell body.

D

Dactylus: a finger or toe: = digitus: a tarsal joint after the first one, when that is enlarged as in bees.

Dagger mark: a marking in the form of a Greek Psi Y .

Dart: a sting, or its central part.

Dash: a short disconnected streak or mark.

Dasygastres: bees with pollen-carrying structures on the abdomen.

Deaurate: of the color of gold; golden.

Deciduous: that which may be cast off or shed.

Declinate -us: a part somewhat bent, the apex downward.

Decumbent -ous: sloping gradually downward.

Decrepitans: crackling.

Decumbent: bending down at tip from an upright base.

Decurrent: closely attached to and running down another body.

Decurved: bowed downward.

Decussate: crossing at an angle: X-like: in cross pairs; or, when bristles alternately cross each other, as in some Diptera.

Deflected: bent downward: the wings, when the inner margins lap and the outer edges decline toward the sides.

Deflexed: abruptly bent downward.

Deformed: twisted or set in an unusual form: specifically, in Coleoptera applied to knotted or twisted antennae as in male Meloids.

Dehiscence: the splitting of the pupal integument in the emergence of the adult in Lepidoptera.

Dehiscent: open or standing open: separating toward the tip.

Dejectamenta: the excrement or excretion.

Delamination: the splitting or division into layers.

Deltoid: elongate triangular: resembling a Greek D with apex extended.

Demarcation: the bounding, laying out or limiting.

Dendritic: applied to the branched nerve cells in the mushroom bodies of the pro-cerebrum.

Dendroid: tree or shrub-like: branching like a tree or shrub.

Dendrophagus: feeding on woody tissues.

Dendrophilous: species that live in woody tissue, or on trees.

Dens: a tooth or tooth-like process.

Dense: thickly crowded together.

Dentate: toothed: with acute teeth, the sides of which are equal and the tip is above the middle of base.

Dentate-serrate: toothed, with the dentations themselves serrated on their edges.

Dentate-sinuate: toothed and indented.

Dentes: the teeth or pointed processes on the inner side of the mandible: the second or middle part of the furcula in Collembola, consisting of two parallel pieces from the distal end of the manubrium and bearing at their apices the crones.

Dentes caninae: see canine teeth.

Denticle: a small tooth.

Denticulated: set with little teeth or notches.

Dentiform: formed or appearing like a tooth.

Denudate: without covering; destitute of scales or hair.

Denude: to free from covering; to rub so as to remove the surface covering of scales, hair or other vestiture.

Deorsum: downward.

Dependent: hanging down.

Deplanate -us: see complanate.

Depressed: flattened down vertically; opposed to compressed.

Depressor: applied to a muscle that has for its function the depression of an organ or a part.

Deratoptera: = Orthoptera.

Dermal: relating to the skin or outer covering.

Dermal glands: hypodermal unicellular glands which secrete wax, setae, spines, etc.

Dermaptera: see Dermatoptera.

Dermatoptera: skin-winged: an ordinal term applied to insects with elytriform, abbreviated primaries beneath which the secondaries are folded transversely and fan-like: mouth mandibulate, prothorax free; abdomen forcipate; metamorphosis incomplete: the Forficulidae or earwigs.

Desectus: = truncatus.

Desideratum -ata: some thing or things needed or desired.

Destitutus: wanting; being without.

Determinate: with well-defined outlines or distinct limits: fixed: marked out.

Detonans: exploding: a sudden noise or a puff like an explosion.

Detritus: rubbed off; a surface partly denuded.

Deuterotoky: parthenogenetic reproduction when the progeny are male and female: see arrhenotoky and thelyotoky.

Deutocerebral segment: =antennal segment; q.v.

Deutocerebrum: the middle portion of the brain, formed by the ganglion of the 2d primary segment; also termed antennal or olfactory lobes from the parts it innervates.

Deutoplasm: the yolk or food plasm of an ovum.

Deutotergite: the secondary dorsal segment of the abdomen.

Dextrad: extending or directed toward the right.

Dextral: to the right of the median line.

Dextro-caudad: extends obliquely between dextrad and caudad.

Dextro-cephalad: extends obliquely between dextrad and cephalad.

Di: as a prefix, = two.

Diaphanous: semi-transparent; clear.

Diaphragm: any thin dividing membrane; that thin membrane separating the cavity containing the heart from the rest of the body.

Diarthrosis: any articulation that permits of motion.

Diastole: that regular expansion of the heart that draws the blood inward: see systole.

Dichaetae: a group of brachycerous Diptera with a proboscis consisting of two parts: Muscids, etc.

Dichoptic: Diptera; eyes separated by front: not contiguous: see holoptic.

Dichotomous: forked: dividing by pairs.

Dichromatism: the possession of two color varieties.

Dictyoptera: an ordinal term applied to the roaches: also more generally to the Orthoptera. {Scanner's comment: Roaches are now classed as Dictyoptera, and Orthoptera are now distinct from Dictyoptera }

Didactyle -us: two-toed: with two tarsi of equal length.

Didymus: double: geminate.

Difformis: irregular in form or outline: not comparable; anomalous. Diffracted: bending in different directions.

Diffuse: spreading out; without distinct edge or margin.

Digestive tract: the alimentary canal as a whole: more specifically that portion behind the crop, in which assimilation takes place.

Digitate: finger-like, or divided into finger-like processes.

Digitiform: formed, shaped like or having the function of a finger.

Digitules: appendages on the feet of Coccidae; in Lecanium, four knobbed hairs.

Digitus: the terminal joint of the tarsus, bearing the claws: a small appendage attached to the lacinia of the maxilla; rarely present and probably tactile.

Digoneutism: the power to produce two broods in one season.

Dilatatus: Coleoptera a margin, when the sharp marginal edge extends beyond its usual limit: the base when the transverse diameter is much longer at one part.

Dilated: widened, expanded.

Dilation: an expansion or widening.

Dilute: thinned out: applied to color means weak or pale.

Dilution: much thinned out or diluted.

Dimera: forms with two-jointed tarsi: specifically applied to some groups of Homoptera.

Dimerous: having only two tarsal joints.

Dimidiate -us: halved; extending half way around; applied to elytra when they cover only half the abdomen.

Dimidius: of half length.

Dimorphic: occurring in two well-marked forms.

Dimorphism: a difference in form, color, etc, between individuals of the same species, characterizing two distinct types: may be seasonal, sexual or geographic.

Dioecious: with distinct sexes.

Dioptrate: an ocellate spot with the pupil divided by a transverse line.

Dioptric: with a transversely divided ocellus.

Diploglossata: an ordinal term proposed for Hemimeridae, because of the supposed presence of a second labial segment.

Diplogangliata: applied to the Arthropods.

Diploptera: = diplopteryga; q.v.

Diplopteryga: Hymenoptera; wasps in which the wings are longitudinally folded when at rest.

Dipneumones: having two lungs (certain spiders).

Diptera: an ordinal term applied to insects having only one pair of wings (anterior): thorax agglutinate; mouth haustellate; transformations complete.

Dipterocecidium: a gall formed by a dipterous insect.

Dipterous: belonging to or having the characters of Diptera.

Direct: applied to metamorphosis = incomplete.

Directive coloration: directive marks or colors which tend to divert the attention of an enemy from more vital parts.

Disc: see disk.

Discal: on or relating to the disc of any surface or structure.

Discal area: of a wing applies especially to the more central portion, or that area covered by the discal cell.

Discal bristles: Diptera; are inserted on the middle of the abdominal segments before the hind margin.

Discal cell: Lepidoptera; the large or median cell extending from the base of the wing toward the center: = radial cell (Comst.): in Diptera (Will.) = 1st medial 2 (Comst.): Odonata; = discoidal areolets, q.v.: Trichoptera, the cell between the forks of the radial sector, and separated from the 2d apical cell by a cross-vein.

Discal patch: in some male Hesperidae the oblique streak of specialized black scales on the disc of the primaries.

Discal vein: Lepidoptera; the cross-vein closing the discal or median cell extends from radius 5 to media 1.

Disciform: formed or shaped like a disc.

Discocellular nervure or vein: Lepidoptera; = discal vein, q.v.

Discoidal: relating to the disc, or middle = discal.

Discoidal area: the middle area or field: Trichoptera; that area of the tegmina between the posterior or anal and the anterior or costal areas = d. field.

Discoidal areolets: Odonata; a varying number of rows of cells on the outer side of the triangle between the short sector (M 4 of Comst.) and the upper sector of the triangle (Cu 1 of Comst.) = post-triangular cells := discal cells.

Discoidal cell: Hymenoptera (Norton) 1st medial 2, medial 3 and medial 4 (Comst.).

Discoidal field: see discoidal area.

Discoidal nervule: Lepidoptera; = media 1 (Comst.).

Discoidal triangle: Odonata - see triangle.

Discoidal vein: Diptera (Schiner), = media 2 (Comst.) anterior intercalary vein (Loew); Hymenopteran (Norton), = media 2 (Comst.), beyond the junction with the medial cross-vein: Trichoptera; the first and largest branch of the humeral vein.

Discoideous: =discoidal.

Discolored -orous: a different color from the surrounding, more or less contrasting; not concolorous.

Discota: insects in which development of the adults is from imaginal discs: see adiscota.

Discrete: distinctly separated.

Discs: the abdominal motor processes of coleopterous larve.

Discus: a disc; a somewhat flat circular part or area.

Disjoined or Disjointed: see disjunctus.

Disjunct: with head, thorax and abdomen separated by constrictions.

Disjunctus: separated; standing apart.

Disk: the central upper surface of any part; all the area within a margin; the central area of a wing: in Trichoptera, the obliquely ridged outer surface of hind femur in saltatoria.

Dislocated: a stria, band or line interrupted in continuity, when the tips of the interrupted parts are not in a right line with each other.

Disperses: with scattered markings, punctures or other small sculptures.

Disposed: arranged or laid out.

Dissepiment: a partition wall: applied to the forming septa separating the coelom-sacs in the embryo; also the thin envelope about the members in obtect pupae.

Dissilient: bursting open elastically.

Distad: toward the distal end.

Distal: that part of a joint farthest from the body.

Distant: remote from: standing considerably apart.

Distichous: applied to antennae when lateral processes originate at the apices of the joints and bend forward at acute angles to them.

Distiproboscis: the outer third of the proboscis in Muscid flies, bearing the labella.

Distychus: bipartite: separated into two parts.

Ditrocha: Hymenoptera; that series having the trochanter two-jointed.

Diurnae: day fliers: applied to butterflies.

Diurnal: such insects as are active or habitually fly by day only.

Divaricable: able to spread apart or divaricate.

Divaricate: straddling or spreading apart: when the wings are lapped at base and diverge behind: tarsal claws when arising at opposite sides of the joint and separating widely.

Divergent: spreading out from a common base; in Coleoptera, tarsal claws are divergent when they spread out only a little; divaricate when they separate widely.

Diverse: unequal: differing in size or shape: of various kinds.

Diverticulum -la: an oft-shoot from a vessel or from the alimentary canal usually blind or sac-like: applied to the caecal tubes or pouches: any extensions or evaginations of the hypodermic.

Dividens (vena): Trichoptera; 1st anal (Comst.).

Dog-ear marks: in bees: small, subtriangular marks of light color, just below the antennae (Cockerell).

Dolabriform: hatchet-shaped: compressed, with a prominent dilated keel and cylindrical base.

Dolioloides: applied to obtect or coarctate pupae.

Dominant: a character more constant and conspicuous than any other: a type or series occurring in large numbers both as to genera, species and individuals and in which differentiation is yet active.

Dorsad: extending or directed toward the upper side.

Dorsal: of or belonging to the upper surface: in Diptera, that face of the laterally extended legs visible from above.

Dorsal bristles: see dorso-central.

Dorsal diaphragm: the wings of the heart, or the very thin membrane upon which these muscles rest: = pericardial diaphragm, q.v.

Dorsal gland orifices: in Diaspinae, oval orifices arranged in more or less distinct rows on the surface of the pygidium, through which is discharged the material of which the dorsal scale is formed.

Dorsal glands: see last preceding title.

Dorsal line: in caterpillars, extends longitudinally on the middle of the back or dorsal.

Dorsal scale: that part of the covering scale of the Diaspinae that lies above the insect, as opposed to the ventral scale, which lies below.

Dorsal space: in slug-caterpillars is the area between the sub-dorsal ridges.

Dorsal vessel: the heart; q.v.

Dorsi-meson: the middle of the upper surface.

Dorso-alar region: Diptera; between the transverse suture and the scutellum on one side and the root of the wing and the dorso-central region on the other.

Dorso-central bristles: Diptera; two or four longitudinal rows on the inner part of the dorsal.

Dorso-central region: Diptera; bounded by two imaginary lines drawn from the scutellar bridges forward, and coinciding with a space free from bristles that exists on the outer side of the dorsal rows and is often occupied by a dorsal thoracic stripe.

Dorso-humeral region: Diptera; bounded by the anterior end of thorax and transverse suture on two sides and by the dorsopleural suture and dorsocentral region on the two others.

Dorsolum: the mesoscutum.

Dorsopleural suture: Diptera; the lateral suture between dorsal and pleurum from the humeri through the base of the wing: separates the mesonotum from the pleura.

Dorso-ventral: in a line from the upper to the lower surface.

Dorsulum: the mesonotum before the scutellum, with the wing sockets: also, specifically, the meso-scutellum.

Dorsum: the upper surface: in Coleoptera; often confined to meso- and meta-thorax: Odonata; includes mesepisterna and meso- and meta-thoracic terga: Diptera; upper surface of thorax, limited by the dorsopleural sutures laterally, the scutellum posteriorly and the neck anteriorly: Lepidoptera; the lower or inner margin of the wing.

Draw-thread: the silk-producing gland.

Drone: in Hymenoptera; the male bee.

Duct: a channel, tube or canal for carrying a secretion from a gland to the point of discharge.

Ductus ejaculatorius: the single duct or tube formed by the union of the vasa deferentia from each side, through which the seminal fluid is ejected into the vagina.

Dufour's gland: that gland, in Hymenoptera, that secretes the alkaline portion of the poison carried by the sting.

Duodenum: the chylific ventricle; also applied to the first section of the digestive tract just behind entrance of malpighian tubules.

Dupion: a cocoon spun by two silk-worms together; also the coarse silk from such a cocoon.

Duplicate -us: double.

Duplicate-pectinate: having the branches of a bipectinated antenna alternately long and short.

Duple: double, or twice.

Durus: hard.

Dusky: somewhat darkened; pale fuscous.

E

E: as prefix, is privative and means without.

Ears: organs of hearing, as on the first tibiae or on the first abdominal segment of some Trichoptera.

Ebenine: black like ebony.

Eburneous: ivory white.

Ecalcaratus: without a spur.

Ecaudate: without tails or tail-like processes: usually applied to wings : = excaudate.

Ecdysis: the process of casting the skin; moulting.

Echinate: set with prickles.

Ecology: the science of the relation of organisms to each other and to their surroundings: = ethology. {Scanner's comment: Ethology nowadays refers to studies in animal behaviour, not directly to ecology.}

Ectad: extending outwardly from within.

Ectal: belonging or relating to the outer surface.

Ectoblast: the outer wall of a cell; the ectoderm or epiblast.

Ectoderm: the outer layer of skin: the outer layer of the blastoderm, giving rise to the nervous system and to epithelial structures of the body surface.

Ectognathus: see ectotrophous.

Ectoskeletal: referring to the outside or exoskeleton.

Ectotrachea: the outer surface or layer of the trachea.

Ectotrophous: with mouth parts free; not buried in the head: see entrotrophus.

Edematus: dull translucent white.

Edentate -ulous: without teeth.

Edentula: those having no teeth.

Efferent: carrying outward or away from the centre.

Effluvium: a foul or unpleasant smell or emanation.

Effected: somewhat angularly bent outward.

Egg: a simple cell, capable of fertilization, containing the germ, the food-yolk necessary for its nutriment, and a covering membrane: a single ovum or cell from an ovary: the first stage of the insect.

Egg-burster: a projecting point on the head or other part of an embryo, used in breaking the shell when hatching.

Egg-calyx: the enlarged portion of the oviduct at the opening of the ovarian tubes, into which the egg is received before its entrance into the vagina.

Egg-case: the case or covering prepared or secreted by an insect to contain or hold together the egg-mass as a whole: see oötheca.

Egg-guide: Orthoptera; two small pointed prolongations of the ventral portion of the 8th abdominal segment, between upper and lower valves, used in oviposition.

Egg-pouch: see oötheca.

Egg-pod: applied to the egg-mass of grasshoppers.

Egg-tube: see ovarian tube.

Ejaculatory duct: see ductus ejaculatorius.

Elastic: a part which has a degree of flexibility throughout.

Elate -us: see elevatus.

Elater: the spring or forked tail of Podurids.

Eleutherata: all forms with free, separated maxillae; later, and more specifically, the Coleoptera.

Elevate -us: a part higher than its surroundings.

Elinguata: without a tongue: forms in which the maxillae are connate with the labium: see synista.

Ellipsoidal: see elliptical.

Elliptical: oblong-oval, the ends equally rounded, together forming an even ellipsoid.

Elongata -ate: drawn out; lengthened; much longer than wide.

Elutus: with scarcely distinct markings.

Elytra: the anterior leathery or chitinous wings of beetles, serving as coverings to the secondaries, commonly meeting in a straight line down the middle of dorsum in repose: also applied to the tegmina in Orthoptera.

Elytral ligula: a tongue-like process on the inner face of the side margin of elytra, to perfect the union with the ventral segments: e.g. in Dytiscidae.

Elytriform: shaped or appearing like an elytron.

Elytrin: = chitin, q.v.

Elytron: singular of elytra; q.v.

Elytroptera: see Coleoptera.

Emandibulata: that series of insects in which there are no functional mandibles in any stage.

Emandibulate: lacking functional mandibles; e.g. butterflies and moths, and applied in any stage.

Emarginate: notched: with an obtuse, rounded or quadrate section cut from a margin.

Embolium: Heteroptera; the narrow sclerite extending along the anterior margin of the hemelytra, from base to cuneus or membrane: the lobes on each side of the prothorax: the special enlargement at the base of the primaries which fits into a cavity in which the wing is moved.

Embossed: ornamented with raised figures.

Embryo: the young animal before leaving the body of the parent or before emerging from the egg.

Embryonic: found in, or relating to the embryo; in an undeveloped state or condition.

Emmet: an ant.

Empodium: Diptera; the small process between the pulvilli: in Coleoptera; the bifid pseudotarsi between the claws: used also as = pulvillus; and see arolium, onychium, palmula, paronychium, plantula, pseudonychium and pulvillus.

Enarthrosis: an articulation like a ball and socket joint.

Encephalon -um: the brain, or that part of the head containing it.

Encircled: ringed; margined round about.

Endemic: occurring normally where found: native, not introduced.

Endocardium: the inner lining membrane of the heart.

Endochorium: the layer of the allantois that lines the chorium; the inner layer of the chorium.

Endocranium: the inner surface of the cranium.

Endoderm: the inner layer of the blastoderm in the embryo, giving origin to the mid-intestine and other visceral organs: see entoderm.

Endolabium: the inner or mouth surface of the labium: the hypopharynx when that is well developed.

Endomesoderm: the inner layer formed by an invagination of the middle portion of the primitive band of the embryo, and from which the endoderm and mesoderm are subsequently differentiated.

Endophytic: living within plant or tree tissue, as borers or miners.

Endoskeletal: relating or referring to the endoskeleton.

Endoskeleton: applied to those chitinous processes extending inward into the body cavity from the body wall and serving as attachments for muscles.

Endosternite: that part of the apodeme arising from the intersternal membrane.

Endothorax: the internal framework or processes of the thorax.

Endotoky: is applied to that form of reproduction where the eggs are developed within the body of the mother; see exotoky.

Endotrachea: the inner surface or lining of the trachea: see intima.

Enervis: applied to wings without veins of any kind.

Engraved: see exsculptus.

Ensiform: sword-shaped: two-edged, large at base and tapering to the point: see anceps.

Entad: extending inwardly from without.

Ental: referring to the centre of the body cavity.

Enteric: relating to the digestive canal or enteron.

Enteron: the digestive canal as a whole; a general term.

Entire: with an even unbroken margin: said of wings when they are not divided or cut into.

Entoderm: the innermost germ layer of the embryo, from which are derived the epithelium of the alimentary canal and accessory structures: = endoderm and hypoblast.

Entognathous: see entotrophous.

Entoloma: the inner margin of the wings.

Entomogenous: growing in or on an insect: e.g. fungi.

Entomography: the description of an insect or of its life history.

Entomolin: = chitin, q.v.

Entomologist: one who collects and studies insects.

Entomology: that branch of Zoology that deals with insects and, specifically, the Hexapods.

Entomophagous: feeding upon insects: specifically applied to those wasps that feed their young with larvae, etc.

Entomophilous: insect-loving: applied to plants especially adapted for pollination by insects.

Entomophytous: referring to plants produced in or on an insect: see Entomogenous

Entomosis: a disease caused by a parasitic insect.

Entomotaxy: the preservation and preparation of insects for study.

Entomotomy: that science which deals with internal structure of insects.

Entomotomist: a student of insect structure.

Entosternum: the internal processes from the sternum.

Entothorax: applied to the apodemes or processes extending inwardly from the sternal sclerites: see apophysis.

Entotrophous: with the mouth parts buried in the head:= entognathous: see ectotrophous.

Entozoa: those animals that live within the body of others.

Environment: the sum of the influences surrounding or acting upon an organism.

Enzyme: a ferment secreted by a cell or a gland.

Epalpate: having no palpi.

Ephebic: referring to the winged, adult stage.

Ephemerida: May-flies: an ordinal term used for insects with net- veined wings, held vertically when at rest, not folded; mouth mandibulate, not functionally developed: thorax loosely agglutinated; abdomen with anal filaments: metamorphosis incomplete.

Ephemeroptera: briefly winged: = ephemerida; q.v.

Epiblast: the outer germ layer of the embryo.

Epicranial: relating or pertaining to the epicranium.

Epicranial lobe: in caterpillars, the lateral, superior convex lobe of the head.

Epicranial plate: in some larvae a plate-like structure forming the epicranium.

Epicranial suture: the line of junction of the two procephalic lobes.

Epicranium: the upper part of the head from the front to the neck: often used to include front, vertex and genae:= calva.

Epideme: see articulatory epideme.

Epiderma -is: the cellular layer of the skin, underlying and secreting the cuticula: incorrectly applied to the outer skin or cuticle.

Epidermata: abnormal excrescences or outgrowths from the skin.

Epididymis: the convoluted efferent ducts, massed at the posterior part of the testes.

Epigastrium: the first entire ventral sclerite of the abdomen.

Epigenesis: the doctrine of growth from an undifferentiated germ, as opposed to preformation, which implies development from already existing rudiments.

Epigenetic: the period after the union of the male and female elements, during which organs are forming.

Epiglossa: = epipharynx; q.v.

Epiglottis: = epipharynx; q.v.

Epilabrum: a sclerite at each side of the labrum: specifically applied in myriapods.

Epilobe: of mentum in Carabidae, really corresponds to a partially divided ligula: a lateral appendage of a bilobed mentum.

Epimera -eron: the posterior lateral thoracic sclerites; usually small, narrow or triangular.

Epiopticon: the second ganglionic swelling of the optic tract: see opticon.

Epipharyngeal: belonging or relating to the epipharynx.

Epipharyngeal sclerites: in bees; a pair of strap-like pieces extending backward from the two sides of the base of epipharynx: see hypopharyngeal sclerites.

Epipharynx: an organ, probably of taste, attached to the inner surface of the labium and supposed to correspond to the palate of higher animals Epiglossa or epiglottis.

Epiphysis: a lappet-like process covering an excavation on the fore tibia of many Lepidoptera.

Epipleural: the deflexed or inflexed portions of the elytra, immediately beneath the edge: the inflexed portions of the pronotum are sometimes called prothoracic epipleura: as generally used, the term is incorrectly applied to the entire bent under margin of the elytra.

Epipleural fold: the raised lower edge of the epipleura: see hypomera.

Epiploön: see caul.

Epipygium: the dorsal arch of the last abdominal segment.

Episternites: the upper pair of corneous appendages forming the ovipositor in grasshoppers.

Episternum: the anterior and larger lateral thoracic sclerite between the sternum and notum.

Epistoma -is: the lower face between the mouth and eyes: that sclerite immediately behind or above the labrum, whether it be clypeus or an intermediate piece: in Diptera, that part of the face between the front and the labrum; the oral margin and an indefinite space immediately contiguous thereto and so = peristoma: in Odonata; = clypeus: = hypostoma.

Epithelium: the layer of cells which covers a surface or lines a cavity.

Epizoa: insects that infest the body surface of animals.

Epizoötic: living or parasitic on animals from the outside or on the surface.

Epomiae: the elevated margin of an oblique furrow in the propleurae for the reception of the front femora; Hymenoptera.

Epupillate: an ocellate spot included by a colored ring, but destitute of a pupil or central spot.

Equal: of the same length, size or shape: the superfices when they are without inequalities.

Equitant: laminated: folding one upon the other.

Erect: standing upright; not necessarily perpendicular.

Erectile: capable of being erected; applied to an appendage, a hair or other process, or to any tissue which may be distended and made rigid.

Erecto-patent: the wings of Hesperids when at rest; primaries erect, secondaries horizontal.

Eremochaetus: Diptera in which there is a general absence of bristles.

Ergatandrous: applied to ants with worker-like males.

Ergatogynous: applied to ants with worker-like females.

Ergatoid: sexually capable, wingless ants, resembling workers.

Ericeticolous: living in poor, sandy or gravelly places.

Eroded -sus: gnawed; a margin with irregular teeth and emarginations.

Eruca: broadly a larva: more specifically a caterpillar.

Eruciform: like a caterpillar in form or appearance.

Erucina: the caterpillar-like larvae of sawflies and the like.

Erucivorous: a feeder on caterpillars; said of parasites.

Erythrinus: red; nearly arterial blood-red: carmine, a little diluted.

Erythrinus: deep brick-red, tending to blood-red [vermilion with a little Indian red].

Escutcheon: the scutellum in Coleoptera.

Essential character: see specific character.

Ethology: see ecology.

Eucephalous: with a well-developed head, bearing the normal appendages: applied to certain dipterous larvae.

Eucone: a compound eye in which the individual ocelli have crystalline cones see acone.

Euorthoptera: the Orthoptera excluding the Dermaptera.

Euplexoptera: with beautifully folded wings: an ordinal term applied to the ear-wigs.

Eous or -eus: as a suffix, indicates the possession of the quality of the stem word: e.g. membraneous, like a membrane in texture.

Eutracheata: applied to articulates which, like the insects, have a well-developed tracheal system.

Evaginate: extruded by eversion; turned inside out when extruded.

Evagination: an extrusion formed by eversion or turning inside out.

Evanescent: disappearing; becoming gradually less.

Eversible: capable of being turned inside out.

Evident: easily seen or recognized.

Ex: prefix = A and E as privatives: also means from or out of.

Exarate -us: sulcated: sculptured.

Exarticulate: without distinct joints.

Exasperate -us: rough with irregular elevations.

Excalcarate: without spurs.

Excaudate: see ecaudate.

Excavate: with a depression that is not the segment of a circle.

Excentric: not in the centre; revolving or arranged about a point that is not central.

Excision: with a deep cut: a notch or other cut-out part.

Excrementaceous -titious: made up of or resembling excrement.

Excrescence: an outgrowth or elevation; usually abnormal.

Excretion: the act of getting rid of waste products: any material or substance produced by any secretory glands or structures and which is voided or otherwise sent out from them.

Excretory: those structures concerned in ridding the body of waste products.

Excurrent: attenuate, narrowly prolonged.

Excurved: curved outwards.

Ex larva: from or out of the larva: usually applied to specimens that have been bred from collected larvae.

Exochorion: that part of the chorion derived from the ectoderm: the outer layer of the chorion.

Exochorium: Heteroptera; a narrow marginal part of the hemelytra.

Exoderm: the outer skin or crust.

Exoloma: the apical margin of the wings.

Exophytic: relating to the outside of plant tissue.

Exoskeleton: the entire body wall, to the inner side of which muscles are attached.

Exotic: not a natives of the place where found: an introduced species: also any species occurring in any country outside of the limits of the country whose fauna is under consideration.

Exotoky: is applied to that form of reproduction where the eggs are developed outside of the body of the insect and without care by the mother see endotoky.

Ex ova: from or out of the egg: applied to specimens that have been bred from the egg stage.

Expanded: spread or flattened out: applied to Lepidoptera when set for the cabinet.

Expanse: the distance between the apices or other widest point of the wings when fully spread.

Expansio alarum: the wing stretch; see expanse.

Expiratory: relating to the act of expiration, when the abdomen is contracted and the air contained in the abdominal tracheae is presumably forced out of them.

Explanate: spread out and flattened; applied to a margin.

Explicate: unfolded; open; without folds or plica.

Exsculptate -tus: a surface with irregular, more or less longitudinal depressions, as if carved.

Exscutellate: having no scutel.

Exserted: protruded; projecting beyond the body or over a given point.

Exsertion: a protrusion: an extension of a line or other ornamentation beyond its ordinary course.

Extended: spread out: not lying one upon the other.

Extense: extended: expanded.

Extension plate: a structure at the base of the pulvillus whose function it is to extend it.

Extension sole: the pad-like pulvillus which may be extended by the extension plate through the pressure plate.

Extensor: that which extends or straightens out; applied to muscles.

Extenuate: to make or to become weak, thin or slender.

Exterior: the outside.

Exterior margin: the outer margin; sometimes used for costal margin.

External: belonging to or on the outside.

External area: Hymenoptera; the upper of the three cells or areas of the metanotum, between the median and lateral longitudinal carina, first lateral basal area.

External median area: Hymenoptera; the median of the three cells or areas between the median and lateral longitudinal carinae: = second lateral area.

Externomedial vein: in Hymenoptera (Norton) = radius (Comst.); in Orthoptera, = media (Comst.).

Externo-median nerve: the humeral and discoidal veins together.

Extra-ocular: remote from or beyond the eyes.

Extremity: the point most remote from base.

Extrorse -um: toward the outside.

Extrude: to turn or force out.

Exude: to ooze or flow slowly through minute openings.

Exuvia -iae -ium: the cast skin of a larval insect: in Diaspinae the larval skin when cast and incorporated in the scale.

Exuviate: to cast the skin: to moult.

Exuviation: the act of molting: the cast-off skin or exuvium.

Eyes: the organs of sight, composed of numerous facets, situated, one on each side of the head: the term is properly applied to compound eyes only but is sometimes used to designate also the simple eyes or ocelli.

F

Face or Facies: the upper or outer surface of any part or appendage: the front of the head between the compound eyes above the mouth to the vertex; usually applied to insects in which the head is -vertical: in bees extends between the eyes to the base of the antennae; in the Hymenoptera generally the area between antenne and clypeus: in flies the area between base of antennae, the oral margin, eyes and cheeks.

Facet: a small face or surface: one of the parts, areas or lens-like divisions of the compound eye.

Facial angle: the angle formed by the junction of the face and vertex.

Facial bristles: Diptera; a series on either side of the middle portion of the face, above the vibrissae, along the facialia.

Facial carinae: applied to both the carinae of the frontal costa and the accessory (lateral) carinae of the face; but usually restricted to the accessory carinae in Orthoptera.

Facial depression: = antennal fovea, q.v.

Facialium -ia: Diptera; that portion of the face between the lower part of the frontal fissure and the antennal fovea.

Facial quadrangle: in bees; the quadrangle bounded laterally by the eyes, above by a line between their summits and below by a similar line between their lowest points.

Facial ridges: Diptera; the elevated lateral borders of antennal grooves.

Facial tubercle: Diptera; a median convexity below middle of face.

Facies: the face: the general appearance or impression.

Falcate: sickle-shaped; convexly curved: a wing when deeply excavated below the apex so as to leave the latter acute and a little curved.

Falciform: curved like a sickle.

False legs: = spurious legs; = prolegs; q.v.

Family: a division of classification including a number of genera agreeing in one or a set of characters and so closely related that they are apparently descended from one stem: opinionative and indicated by the termination idae.

Farctus: fully filled.

Farinaceous: mealy: applied to powdery looking wings and surfaces.

Farinose: dotted with many single, flour-like spots: mealy.

Fascia: a transverse band or broad line; it is common when it crosses both wings or wing covers.

Fasciate: banded transversely.

Fascicle -ulus: a bundle of hair, threads or fibres.

Fasciculate: bundled; clustered as in a bundle; tufted: a surface when covered with bundles of long hair.

Fastigiate: flat-topped and of equal height: also applied to elytra that extend a little beyond the abdomen.

Fastigium: Orthoptera; the extreme point or front of vertex.

Fat-body: is the mass of oil or fat cells found, especially in larvae, surrounding the alimentary canal and some other internal organs.

Fatiscent: with cracks, crevices or openings.

Fauna: the assemblage of animals inhabiting a region or country.

Favose: with large deep holes, like the cells of a honeycomb.

Favus: a cell like that of a honeycomb.

Fecula: the excrement of insects.

Fecundation: the making fertile; as an egg by a spermatozoön.

Feeler: commonly applied to antennae; q.v.

Feelers: tactile organs: the term is usually applied to the antennae but sometimes to the palpi, as mouth-feelers.

Feet: the legs or organs of locomotion; one pair attached to each thoracic segment; composed of coxa, trochanter, femur, tibia and tarsus only; plural of foot; q.v.

Female: designated by "O+" the astronomical sign for Venus: that sex in which the ova are developed. {Scanner's comment: The sign for Venus being an orthogonal cross or plus sign hanging vertically below a circle.}

Femina: the female, or belonging to that sex.

Femorate -us: with abnormal or unusually developed femora or thighs.

Femoro-tibial: pertaining to both femur and tibia or to the articulation between them.

Femur -ora: the thigh: usually the stoutest segment of the leg, articulated to the body through trochanter and coxa and bearing the tibia at its distal end: in Coccidae and quite commonly, the femur and trochanter are considered as one, for measuring purposes.

Fenestra: a window; a transparent glassy spot or mark; a pellucid mark in a vein: a small, pale, membranous area at the base of the antenna in roaches.

Fenestrate: with transparent or window-like naked spots as in the wings of some Lepidoptera.

Fenestrate membrane: of the compound eye is at the base of the ommatidia, at their junction with the optic nerve; see retina.

Ferreous -eus: the metallic gray of polished iron.

Ferrugineous -ous, -eus, -osus: rusty red-brown [Dragon's blood, but brighter].

Ferrugino-testaeeous: a rusty yellow brown: a mixture of rusty red with dull yellow brown.

Fertilization: takes place when a spermatozoön enters through the micropyle of an ovum and unites with the cell nucleus: loosely applied like copulation or to its completion.

Festivus: variegated with bright colors.

Festooned: arranged in loops as if hung from nails.

Fibre: a thread-like structure of any tissue.

Fibrilla: rod or sliver-like nerve elements, often grouped like a bundle of short threads.

Fibrin: a proteid compound making up a large part of the muscular tissue: also found in blood and other body liquids.

Fibrinogen: a proteid substance of the blood and other body fluids, concerned in the production of fibrin.

Fibroin: a chemical compound found in silk, cobwebs and the like.

Fifth longitudinal vein: Diptera (Will.); = media 3 (Comst.).

Filament: a thread: a long slender process of equal diameter throughout: an elongated appendage.

Filariasis: a disease caused by the presence of minute worms or Filaria, transmitted by mosquitoes. {Scanner's comment: Nowadays it is known that many kinds of filariasis are transmitted by other species of flies, in particular Simuliidae and Tabanidae}

Filate: Diptera; antennae that are simple, without lateral hair or dilation: thread-like.

Filator: the silk spinning structure of caterpillars.

File: the diagonal ridged vein near the base of the tegmina in crickets, used in stridulating: in general any structure wherever situated that serves the same purpose.

Filicornia: insects with thread-like antennae; e.g. in Coleopteran, the Carabidae.

Filiform: thread-like: slender and of equal diameter.

Filippi's glands: a pair of secondary glands, opening into the silk glands of caterpillars near their anterior end.

Fillet: a transverse, raised structure between the antennae in Lepidoptera.

Filose: ending in a thread-like process.

Fimbria: thick, ciliated hair at the termination of any part: fringes.

Fimbriate: a margin or process when set with a fringe of hair closely placed.

Finger: of maxilla, is the digitus, q.v.

First clypeus: see post clypeus.

First inner apical nervure: in Hymenoptera (Nort.); is cubitus 1, from media 4, to first anal (Comst.).

First lateral suture: Odonata; starts from beneath base of front wing behind humeral suture and meets it behind second coxa.

First longitudinal vein: in Diptera; - radius 1 (Comst.).

First submarginal cross-nervure: Hymenoptera; part of the media and the radio-medial cross vein (Comst.).

Fissate: divided or split: with fissures or cracks.

Fissile -is: cleft or divided; as the wings in plume-moths: also used for lamellate.

Fissiparous: applied to that form of asexual generation in which the parent divides; each part becoming a new individual.

Fissure: a crevice: a narrow longitudinal opening: a slit.

Fissus: cleft: longitudinally divided nearly to base.

Fistula: a slender tube: specifically applied to the channel formed by the union of the two parts of proboscis in Lepidoptera.

Fistular: like a slender, cylindrical tube.

Flabellate: with long flat processes folding like a fan.

Flabelliform: fan-shaped.

Flabellum: a fan: a leafed structure: the transparent lobe at the end of the glossa in bees: also used as = flagellum; q.v.

Flabs: the lobes at the tip of the dipterous mouth:= labella; q.v.

Flaccid: feeble: limber: lax.

Flagelliform: whip-like; applied to a process.

Flagellum: that part of the antenna beyond the pedicel: a whip or whip-like process: the tail-like process of a spermatozoön.

Flammate -eus: flaming or fiery red [vermilion intensified].

Flange: a projecting rim or edge.

Flank: the sides of the thorax: the pleura.

Flaring: widening out like the mouth of a trumpet.

Flavescent: somewhat yellow.

Flavid: yellowed: sulphur yellow.

Flavo-testaceous: light yellow-brown: almost luteous.

Flavous -us: sulphur yellow [gamboge].

Flavo-vixens: green verging upon yellow [apple green + chrome yellow].

Flex: to bend: to curve back.

Flexible: pliable; with elastic properties.

Flexile -is: capable of being bent at an angle without breaking: flexible.

Flexuous -ose: almost zig-zag, without acute angles but more acute at angles than undulating: differs from sinuate in being alternately bent and nearly straight.

Flexor: that which bends; applied to muscles.

Flocculus -i: a hairy or bristly appendage on the posterior coxa of some Hymenoptera.

Floccus: a tuft of wool or wool-like hair.

Flosculiferous: species that bear a flosculus.

Flosculus: a small, tubular lunulate anal organ with a central style, in certain Fulgorids.

Fluviatile: inhabiting the margins of running streams.

Fly-blows: eggs or young maggots of flesh flies: meat is fly-blown when such eggs or larvae have been deposited on it.

Flying-hairs: very long slender surface hairs set in punctures.

Foetid glands: glandular structures from which a foul smelling liquid may be ejected.

Foliaceous: leaf-like, or resembling a leaf.

Folioles: leaf-like processes from a margin or protuberance.

Follicle: = cocoon, q.v.: a cellular sac or tube, as of a gland or ovary.

Folliculate: enclosed in a case, cocoon or follicle.

Food reservoir: Lepidoptera, a blind sac or diverticulum from the bind part of oesophagus lying in abdomen dorsal to the stomach.

Foot: the tarsus, q.v.; improperly used to = leg; but in the plural form refers to legs rather than tarsi: see feet.

Foot-shield: in caterpillars, the chitinous plate on outer side of abdominal feet.

Foot-stalk: of the maxilla, is the stipes.

Foramen: an opening in the body wall for the passage of a vessel or nerve: any opening at an apex: the opening of a cocoon.

Foramen magnum; the opening on the posterior surface of the head to give passage to those structures that extend from head to thorax occipital foramen.

Foramina: small openings in the body wall: in Orthoptera,; the auditory organs on the anterior tibiae.

Forceps: hook or pincer-like processes terminating the abdomen, like specialized appendages of ear-wigs: similar processes in the male, used as clasping organs in copulation.

Forcipate: bearing forceps or similar structures.

Forcipiform: having the form of forceps or pincers.

Fore: anterior.

Foregut: extends from the mouth to the end of gizzard; its epithelium being formed from the ectodermal invagination known as the stomodaeum.

Forehead: in Mallophaga, the head in front of the mandibles and antennae.

Fore-intestine: =foregut, q.v.

Forficate: = forcipate, q.v.

Forks: Trichoptera; forks of veins in apical part of wing, numbered 1, 2, 3, etc.

Form: applied to representatives of a species which differ from the normal or type, in some uniform character; it is seasonal if it occurs at a period different from the type; dimorphic if there is an alternation of generations or two color patterns occur; or sexual if the members of one sex differ uniformly from those of the other.

Formic: of, pertaining to or derived from ants.

Formicary: an ant's nest or ant-hill.

Fornicate: arched or vaulted: concave within, convex without.

Fossa -ae: = fossula; q.v.

Fossoria: burrowers: in Orthoptera, the mole crickets and allies; in Hymenoptera, the digging wasps.

Fossorial: formed for or with the habit of digging or burrowing.

Fossula -ae: a deep groove or sinus with sharp edges: specifically applied to grooves on the head or sides of prothorax in which the antennae are concealed.

Fossulate: a surface with oblong impressions.

Fossulet: an elongated, shallow groove.

Fourth longitudinal vein: Diptera (Will.), = media 2 (Comst.).

Fovea, Foveola -ae: a shallow depression with well-marked sides: a pit.

Foveate: with foveae or pit-like depressions.

Foveolate: with shallow cavities like a honey-comb.

Fractus: broken: also applied to a geniculate antenna.

Fragile: easily breakable: thin and brittle.

Frass: the excrement; usually the excreted pellets of caterpillars.

Free: unrestricted in movement: not firmly joined with or united to any other part: said of pupae when all the parts and appendages are separately encased as in Coleopteran.

Frenatae: that series of Lepidoptera in which a more or less well- marked frenulum occurs.

Frenate: having a frenulum.

Frenulum: the spine, simple in males, compound in females, arising from the base of secondaries in many Lepidoptera, whose function it is to unite the wings in flight: in Cicada the triangular lateral piece on the mesonotum which connects with the trochlea: the anal area of secondaries and thus = tendo, q.v.

Frenulum hook: in the males of frenate Lepidoptera, a hook or fold into which the frenulum is fitted.

Frenum: that which holds things together: a lunate or triangular portion at the inner and hinder base of the wing in Odonata and Trichoptera; see tendo.

Fringe -es: an edging of hair, scales or other processes extending well beyond the margin and usually of even length: in Lepidoptera, fringes occur on the outer margins of all wings and consist of scales or hair projecting beyond the wing membrane.

Frog: the articular pan, - q.v.

Frons: = front; q.v.

Front: the anterior portion of head between base of antennae and below ocelli: in Homoptera, the vertical median area of face.

Frontal: referring to the front of head or anterior aspect of any part.

Frontal costa: Orthoptera, a prominent vertical ridge of bead which may be median or lateral: see median carina and lateral carina.

Frontal fastigium: in Orthoptera, that process of the face extending dorsad between the antennae and meeting or nearly meeting the fastigium of the vertex in Tettigidae.

Frontal fissure: Diptera; the impressed line extending from the frontal lunule to the border of the mouth.

Frontal lobes: in Psyllidae, two lobes or swellings more or less completely divided by a suture in which an ocellus is situated.

Frontal lunule: Diptera; an oval or crescentic space above the base of antennae in Cyclorrhapha, bounded by the frontal suture.

Frontal processes: Diptera; = antennal process, q.v.

Frontal ridge: in Coleopteran; a sharp ridge on the dorsal margin of the eye, extending forward.

Frontal stripe: Diptera; the middle of the front when membranous or discolored: = vitta frontalis.

Frontal suture: Diptera; separates the frontal lunule from that part of the head above it: in Coleopteran; = clypeal suture.

Frontal tubercles: in certain Aphids, are raised structures upon which the antennae are placed.

Frontal triangle: Diptera; the triangular space in males, between the eyes below, limited by a line drawn through base of antennae.

Frontal vesicle: in Odonata; that elevated area on the vertex upon which the ocelli are situated.

Fronto-orbital bristles: in Diptera; are placed on each side of the front, just below the vertical bristles.

Fugitive: soon disappearing; not permanent.

Fulcrant: the trochanter when continued along the femur, as in Carabids.

Fulcrum: the chitinous envelope at the base of mouth in Diptera and Hymenoptera, covering the beginning of the oesophagus: any structure that serves as a support to another..

Fulgidus: shining.

Fuliginous -osus: sooty or smoky brown [Van Dyke brown + a little black].

Fulvo-aeneous: brazen, with a touch of brownish yellow [brown pink].

Fulvous -us: tawny; light brown with much yellow; nearly orange [pale cadmium yellow + Indian red].

Fumate -us: smoky gray [gray].

Fumose: smoky.

Function: the work or duty which a given part or organ normally performs.

Fungicolous: living in or on fungi.

Funicle: the joints between the scape and club in Funiculate antennae: a small cord: a slender stalk.

Funiculate: whip-like: long, slender, composed of many flexible joints.

Funicule: a small, cord-like structure; especially when sheathed.

Funiculus: the main tendon of abdomen: in Hymenoptera a slender ligament connecting the propodeum to petiole on its dorsal aspect.

Furca: a fork: the anal appendage used for leaping in Thysanura; see furcula: the forked ental processes of the sternum.

Furcal orifice: see sternal into orifice.

Furcate: forked; divided nto two approximately equal divisions.

Furcula: a forked process: an osmaterium {Scanner's comment: sic. See comment under "osmaterium".}: in Collembola the spring or saltatory appendage borne by the fourth abdominal segment: in Orthoptera, a pair of backwardly directed appendages which overlie in a more or less forked position the base of the supra-anal plate.

Furred: covered with dense hair resembling fur.

Fuscescent: becoming brown; with a brown shading.

Fusco-ferruginous: brownish rust red.

Fuseo-piceous: pitch black with a brown tinge or admixture.

Fuseo-rufous: red-brown, approaching liver brown.

Fuseo-testaceous: dull reddish brown [brown ocher].

Fuscous -us: dark brown, approaching black; a plain mixture of black and red [crimson lake + black].

Fused: run together: applied when two normally separated markings become confluent and have a common outline.

Fusiform: spindle-shaped: tapering gradually to each end.

Fusulus: = spinneret, q.v.

G

Gales: the outer lobe of the maxilla, usually two-jointed, often hood-like, subject to great modifications in Hymenoptera and Diptera, and forms the coiled tongue in Lepidoptera.

Galeotheca: that part of the pupal case that covers the gales. Gall: an abnormal swelling or excrescence on a plant, produced by an insect: = cecidium.

Gallicolous: dwellers in galls, whether as producers or inquilines.

Gallivorous: feeding upon galls or gall tissue.

Gamogenesis: reproduction through fertilization: see agamogenesis.

Ganglion -ia: a nerve centre composed of a cell mass and fibres: the white disc-like bodies connected by a double cord, lying above the ventral surface within the body and forming the centre of the nervous system.

Gasterotheca: that part of the pupa case that covers the abdomen.

Gastric: of or belonging to the belly or to the stomach.

Gastric caeca: = caecum; q.v.

Gastro-coeli: a pair of usually transverse lateral pits near the base of the second abdominal tergite in some Hymenoptera.

Gastro-ileal folds: occur in some insects at the junction of the chylific ventricle with the ileum and serve as a valve.

Gastrula: that embryonic stage resembling a sac, with an outer layer of epiblastic cells and an inner layer of hypoblastic cells.

Gastrulation: the process of forming a gastrula.

Gathering hairs: the soft, flattened, often hooked hairs on the tongue of bees and other Hymenoptera; = hooked hairs.

Gelatinous: of a jelly-like texture or consistency: viscid.

Geminate: arranged in pairs composed of two similar parts: doubled.

Gemmate -us: marked with metallic or bright colored spots.

Gemmiparous: applied to that form of asexual reproduction where new individuals arise as buds from the germ body of the parent.

Gena -ae: the cheeks; includes that portion of the head on each side below the eyes, and extends to the gular suture: in Odonata the area between the eyes and clypeus and mouth parts: in Diptera the space between the lower border of the eye and oral margin, merging into face at front and limited by the occipital margin behind.

Genal bristles: Diptera; are on the cheeks near lower corner of eye.

Generalized: primitive: containing in combination characters that are separated and specialized in other forms.

Generation: used as the equivalent of brood; q.v.

Genicular arc: Orthoptera; a curved dark marking on the posterior knee-joint.

Geniculate: knee jointed: abruptly bent in an obtuse angle.

Geniculum: a little knee or bend.

Genital armature: all the processes concerned in copulation.

Genital hamule: a little hook or plate covering the anal cavity of the male: the supra-anal or genital hook: in Lepidoptera, the uncut: in Odonata, in the plural, one or two pairs of lateral processes of the male genitalia on the ventral surface of the second abdominal segment.

Genital hook: = genital hamule.

Genitalia: the external organs of generation with all appendages.

Genital lobes: in Odonata, a pair of-backward and downwardly directed processes from the 2d abdominal segment, between which the vesicle of the penis lies.

Genital papilla: in some Smynthurids, a tubercular elevation upon which the genital aperture opens.

Genital spike: the sheath of penis which, in male Diaspinae takes the form of a long mucronate spike.

Genital tuft: in Lepidoptera; an expansible tuft of fine hair believed to be scent-producing.

Genital valve: Odonata; a chitinous piece on each side of the ovipositor, derived from the sternum of abdominal segment 9: probably = outer pair of gonapophyses.

Genoholotype: the species on which a genus is founded, whether unique or one of a series, specifically named as generic type by the author.

Genolectotype: the one species of a series selected as the type of the genus in which the describer of the genus placed it, subsequent to the description.

Genosyntype: one of a series of species upon which a genus is founded, no one species being mentioned as type.

Genus: knee; the joint between femur and tibia.

Genus: an assemblage of species agreeing in some one character or series of characters; usually considered as arbitrary and opinionative, though some consider it a natural assemblage.

Geometrid: larva which, when walking, alternately elevate and straighten the middle of their body: opposed to rectigrade; q.v.

Geodephagous: = adephagous; q.v.

Geodromica: terrestrial Heteroptera in which the antennae are not concealed.

Geophilous: living on the ground: species that live on the surface or come freely into contact with it.

Germanium: an ovary: that portion of an ovarian tube containing the cell elements.

Germ-ball: reproductive cells in larvae from which, exceptionally, young may develop as buds.

Germ-band or Germinal band: that portion of a young embryo which is to become the future insect, when it is in the form of a band or strap and may or may not show the division into the future segments.

Gerontogeic: belonging to the old world: see neogeic.

Gibba: a rounded protuberance or prominence.

Gibbous: hump-backed; protuberant: said of a macula when it resembles a moon more than half full.

Gibbus: when the whole surface forms a hump or obtuse cone.

Gills: respiratory structures which function in water; distinguished as true or blood gills where contained blood conveys the absorbed oxygen from the gill to the tissues, and as tracheal gills when this conveyance is by contained tracheae.

Gilvus: = flavus; q.v.

Ginglymus: a hinge joint that permits flexion in one plane.

Gizzard: a pouch-like structure between the crop and chylific ventricle furnished with chitinous teeth or plates, in which the food is prepared for the digestive juices by grinding or merely sifting = cardia.

Glaber-rous: smooth; free from all vestiture.

Gland: a cellular sac which separates or secretes from the blood specific portions to produce characteristic products - e.g. wax, saliva, silk, etc.

Gland-bearing prominence: in Diaspinae a prominence on the margin, bear-ing a gland opening on the dorsal surface.

Gland orifice: in Coccidae, the external opening through which a gland pours its secretions.

Gland spines: in Coccidae; spiny appendages, each of which is supplied with a single gland whose opening is at the tip.

Glandular: having the character or function of a gland: used as descriptive of specialized hairs, spines or other processes.

Glassy: transparent; glass-like in appearance.

Glaucus: shining sea-green: whitish blue inclining to gray lavender.

Globose: formed like a globe or sphere.

Globulin; an albumenoid proteid compound formed in the blood of insects.

Glochis: a barbed point.

Glomerate: congregated or massed together.

Glossa: the inner lobe of second maxilla, corresponding to the lacing of first maxilla: loosely used as a synonym for tongue: especially applied to the coiled structure of the Lepidoptera; see also ligula.

Glossarium: Diptera; the labrum-epipharynx; q.v.

Glossata: a Fabrician term for Lepidoptera.

Glossate: furnished with a spiral tongue.

Glossotheca: that part of the pupa which covers the tongue.

Glutinose -ous: slimy; viscid.

Gnathal: relating or pertaining to the jaws.

Gnathite: a jaw or jaw-like appendage; in the plural, the mouth parts.

Gnathochilarium: a plate formed by the labial structures.

Gnathopoda: the arthropods: the first pair of legs; especially applied in crustaceans: mouth feet.

Goffered: a surface with regular impressions, closely set, and separated by narrow ridges: reticulated.

Gonapophyses: three pairs of processes in the Orthoptera, one arising from the eighth and two from the ninth abdominal segment op the ventral surface. They appear to = the rhabdites composing the ovipositor of other insects.

Gonyodon: a tooth-like articulated process at the apex of the femur in some Noctuidae.

Gonytheca: articulating surface of femur to which the tibia is joined.

Gorgeret: the barbed sting of the honey bee.

Gracile: slender; graceful.

Gradate -vim: one grade or step at a time: to arrange in a series: to blend so as to merge one into the other - e.g. colors.

Gradate veins: a transverse series of veins, each before or beyond the next.

Grammineus: grass-green [apple green].

Granose: like a string of beads; moniliform.

Granulated: covered with small grains.

Granule: a little grain or grain-like elevation.

Granulose: roughened with granules or made up of distinct grains.

Gregarious: living in societies or communities; but not social.

Grège: raw silk, including the gummy outer layer, as spun by a caterpillar.

Grès: the gummy layer surrounding the silk thread spun by a caterpillar.

Gressorious -vial: with legs fitted for walking: in Lepidoptera; the anterior legs aborted, the others fitted for walking.

Griscent: ashen gray.

Griseus: light gray; a mixture of white and black [gray].

Group: a division of classification used indefinitely for a series of allied species, genera or larger assemblages.

Grouped glands: see circumgenital glands.

Grub: an insect larva: a term loosely applied, but more specifically to larvae of Coleopteran and Hymenoptera.

Guanin: a white amorphous compound which occurs in the transparent areas of some wings, giving a milky tinge, and is also found in the photogenic organs of Lampyridae: an excretory substance, composition C5H5N5O (von Furth).

Guest: applied to those insects that live in nests or dwelling places of other species, not necessarily at the expense of the host.

Gula: the throat: that sclerite forming the central portion of the head beneath, extending from the submental to the posterior margin, and laterally bounded by the genae.

Gular peduncle: in Coleopteran = submental peduncle.

Gular suture: the line of division between the gulag or throat and the gene or cheeks.

Gulf strip: see semitropical or gulf strip.

Gullet: = oesophagus; q.v.

Gulo-mental: includes the region covered by the gulag and mentum.

Gustatory: elating to the sense of taste.

Gutta: a light spot on a dark ground.

Guttate: with light spots or drops on a dark ground.

Gymnocerata: insects with freely movable, conspicuous antennae: see cryptocerata.

Gymnogastra: Hymenoptera; species in which the venter is visible: see cryptogastra.

Gymnoptera: species with membranous wings not covered with scales.

Gynandromorphic: when an individual of one sex exhibits on one lateral half the organic characters of the other, more or less completely.

Gyri-cerebrales: lobes of the oesophageal ganglion of the embryo, connected with the primary lobe: = stalked bodies.

H

Habena: a fascia on the thorax.

Habit -us: the port or aspect: used to express a resemblance in general appearance.

Habitat; abbreviated Hab.: the region or place which an insect inhabits or where it was taken.

Haemoglobin: the coloring matter of blood which serves to carry oxygen.

Haemolymph: the watery blood or lymph-like nutritive fluid of the lower invertebrates.

Haemoxanthine: a dissolved albuminoid in the insect blood, which has both a respiratory and nutritive function.

Hair: a slender, flexible filament of equal diameter.

Hairy: covered or clothed with hair.

Halophilous: species living in salt marshes, or near the sea.

Halterata: the Diptera.

Halteres: the poisers or balancers: capitate movable filaments in Diptera, situated one on each side of the thorax and representing rudimentary hind wings.

Halteriptera: the Diptera.

Hamule -us: furnished with hooks, or bent like a hook.

Hammock: the hammock-like covering of the caterpillars of certain moths. Hamule: a little hook.

Hamuli: Odonata; one or two pairs of hooked processes projecting from the ventral surface of the 2d abdominal segment of the male; usually termed genital hamules: in Hymenoptera; minute hooks on the anterior margin of secondaries used to unite them in flight with the inner margin of primaries: in tree crickets, hook-like processes of the male genitalia.

Hamus: Lepidoptera; a hook or loop attached to the under side of costal margin of primaries near base, to receive the frenulum of male moths.

Harpago -ones: the inner basal lobes of the clasping organs of d culicids also, more generally = harpes.

Harpes: the lateral pieces of the male genitalia in Lepidoptera, used as clasping organs: also applied to the corneous hooks often borne by these lateral pieces, which are then termed valves; see clasper: in culicids an articulated process, sometimes jointed, at the base of inner side of side-piece, below and exterior to the harpagones.

Hastate: halbert-shaped: excavated at base and sides but with spreading lobes or angles.

Hastiform: = hastate.

Hatched: closely marked with numerous short, transverse lines.

Hatching spines: = egg burster; q.v.

Haustellate: formed for sucking: applied chiefly to mouth structures.

Haustellum: a sucker: applied to that portion of the mouth of a sucking insect through which liquid food is drawn into the gullet.

Head: the first or anterior region of the insect body, articulated at its base to the thorax, bearing the mouth structures and antennae. It is now believed to be made up of seven primitive segments, named in order: 1, the ocular or protocerebral; 2, the antenna or deutocerebral; 3, second antenna or tritocerebral; 4, mandibular; 5, superlingual; 6, maxillary; 7, labial or 2d maxillary.

Head vesicle: in Diptera, = ptilinum, q.v.

Heart: the dorsal vessel or tubular structure divided into chambers, lying just beneath the dorsal, which serves to propel the blood and controls the circulation.

Heautotype: = autotype; q.v.

Helcodermatus: a surface with ulcer-like depressions: applied also to the boring or tearing spines of pupae.

Heliciform: in the form of a spiral snail shell: applied to the cases of some Trichoptera.

Helocerous: with clavate antennae.

Helvolus: tawny or dully reddish yellow.

Helvus: honey yellow [brown pink + chrome lemon].

Hemelytra: a modification of the anterior wings of Heteroptera, coriaceous at base, membranous at tip, not meeting in a straight line at the middle: more specifically applied to the corium; q.v.: also used for the tegmina of Orthoptera.

Hemi: as a prefix, means half.

Hemimeroptera: an obsolete term for Hemiptera.

Hemimetabolous: manifesting an incomplete metamorphosis, but with a marked difference between the stages: specifically the Ephemerida, Odonata and Perlidae. {Scanner's comment: nowadays applied to far more orders, generally to those that undergo a marked metamorphosis, but without a pupal stage.}

Hemiptera: half-winged: an ordinal term applied to insects in which the mouth parts consist of four lancets inclosed in a jointed beak or rostrum; metamorphosis incomplete: the primaries may be of uniform texture throughout (Homoptera) or may be thickened at base, membranous at tip (Heteroptera).

Hemispheric: like the half of a globe or sphere.

Hepaticolor: liver-brown [dragon's blood].

Hepatic pouches: applied to caeca pouches; q.v.

Herbivorous: feeding upon plant tissue: a leaf feeder.

Heremetabola: with slight or incomplete metamorphosis, but with a resting stage at the end of the nymph life; specifically the Cicadidae.

Hermaphrodite: an individual in which the characters of both sexes are combined.

Hetero: as a prefix, unequal; different from.

Heterocera: Lepidoptera in which the antenna are of any form other than clubbed at tip: opposed to Rhopalocera.

Heterochrome: of different color: applied to species in which there are two color forms of one sex, one of which is like (homoeochrome), the opposite sex, as in certain Odonata and Lepidoptera.

Heterochrony: an irregular development in point of time, a later stage becoming evident before one that is earlier in ordinary course.

Heterogamy: applied to those cases in which two sexual or a sexual and parthenogenetic generation alternate.

Heterogeneous: a mixture of different forms; abnormal.

Heterogeny: the alternation of sexual and parthenogenetic generations.

Heterogyna: the ants: referring to the different kinds of females, - queens and workers, - as distinguished from males.

Heteromera: Coleopteran in which the anterior and middle tarsi are 5- jointed and the posterior are 4-jointed.

Heteromerous: having an unequal number of tarsal joints on the feet.

Heterometabola: differing among themselves in metamorphosis; but not manifesting abrupt stages.

Heteromorphous: the metamorphosis complete, in abrupt stages, the larva unlike the adult.

Heteronomous: if two parts, compared with each other, are of different quality: differing in development or function.

Heteropalpi: palpi with a different number of joints in male and female, as in some Trichoptera.

Heteroptera: an ordinal term applied to that series of Hemiptera in which the anterior wings differ in texture from the posterior, and the different regions of primaries differ in texture.

Heteropterous: with wings of different texture in different parts.

Heterotypical: a genus, described from more than one species, these differing in structure,

Hexachaetous: Diptera in which the mouth structures have six piercing setae.

Hexanephric: with six kidneys, or structures serving as such.

Hexapoda: tracheate arthropods with head, thorax and abdomen distinct, and only six legs in the adult stage: the true insects.

Hexapodal -ous: provided with six feet.

Hians: gaping.

Hibernaculum: a tent or sheath made out of a leaf or other material in which a larva hides or hibernates.

Hibernate: to pass the winter in a dormant condition.

Hicks' bottles: {Scanner's comment: sic} flask-shaped pits or depressions in the antennae of bees and ants: supposed to be the organs of hearing.

Hind angle: in primaries of Lepidoptera, is that point where inner and outer margin meet: = anal angle of secondaries.

Hind-body: the abdomen.

Hind-gut: the intestinal canal from the end of chylific ventricle to the Anus, including the malpighian tubules and anal glands.

Hind-head: Mallophaga; that part of head behind mandibles and antennae.

Hind-intestine: = hind-gut.

Hinge: of maxilla = cardo; q.v.: the point of articulation of a movable joint.

Hips: the coxa; q.v.

Hirsute: clothed with long, strong hair; shaggy.

Hispid: bristly: sparsely set with short, stiff hair.

Histoblast: the morphological unit or cell characteristic of a particular tissue.

Histogenesis: the formation and development of tissue.

Histolysis: the degeneration and dissolution of organic tissue.

Hoary: covered with a fine, white, silvery pubescence: pruinose q.v.

Holometabolous: having a complete transformation; with egg, larval, pupal and adult stages distinctly separated.

Holopneustic: having many pairs of open stigmata.

Holoptic: Diptera in which the eyes of male are contiguous between vertex and antennae: see dichoptic.

Holosericeus: with short, dense, silky hair, giving a satiny lustre.

Holotype: the unique type: = type; q.v.

Homelytra: elytra of similar or equal substance.

Homo: prefix = the same; similar.

Homochronic heredity: inheritance at corresponding periods of life.

Homochronous: changes in an organism which appear in the offspring at the same age at which they did in the parent.

Homodynamous: serially homologous: homology of the metameres.

Homoeochromatism: applied when over a given region many butterflies tend to vary similarly as regards color.

Homoeochrome: of the same color: see heterochrome.

Homoeomerous: all feet with an equal number of tarsal joints: = isomerous.

Homoeonomous: of the same substance or texture.

Homoetype: = homotype; q.v.

Homogeneous: of the same kind or nature: similar in texture or parts.

Homogenous: similar in structure due to a community of descent.

Homologous: implies that organs are identical in general structure and origin, though they may have developed in different ways for special purposes: see analogous.

Homomorpha: insects in which the larvae resemble the adults.

Homonymous: pertaining to homology of parts arranged on a transverse axis similarly developed and of equal function.

Homonym: a name similar to or like another already used for a species in the same genus, or for a genus in the same kingdom: such names are paid to be preoccupied.

Homonymous: where the same name is applied to different conceptions.

Homophonous: words differently written but indistinguishable in sound, applied to different conceptions.

Homoplastic: implies that organs, similar in situation and purpose, are not structurally the same, or have not the same origin.

Homoptera: an ordinal term applied to those Hemiptera in which the primaries are of the same consistence throughout.

Homotenous: retaining the primitive form: applied to insects without or with an incomplete metamorphosis.

Homotype: is a specimen named by another than the author after comparison with the type.

Honey dew: a sweetish excretion produced by certain insects, notably Aphids and Coccids, and exuding from the surface of some galls.

Honey tubes: small tubes or tubercles on the abdomen of plant lice and other insects through which a sweetish liquid or honey dew is excreted siphonets; siphuncles; cornicles.

Hood: of the maxilla is the galena; q.v.: in Tingitidae the elevated portion of the prothorax, often covering the head.

Hooked hairs: = gathering hairs; q.v.

Horismology: see orismology.

Horizontal: said of wings when held parallel to the horizon.

Horn: a pointed chitinous process of the head: in the plural form applied to the antennae; q.v.

Host: the individual infested by or upon which a parasite grows: also applied to the maker of a cell or other structure in which guest flies or other insects take up their abode.

Hudsonian zone: is that part of the boreal region comprising the northern part of the great transcontinental coniferous forests. In the eastern United States restricted to the cold summits of the highest mountains, from northern New England to western North Carolina: in the west it covers the higher slopes of the Rocky and Sierra-Cascade systems.

Humeral: relating to the shoulder or humerus.

Humeral angle: in Lepidoptera, that angle of the wings at the base of costa, near the point of attachment to the body: in Coleopteran, the outer anterior angle of elytra: in Orthoptera, the obtusely rounded angle formed by the deflection of the sides of the pronotum from the dorsal.

Humeral bristles: in Diptera, are situated on the humeral callus.

Humeral callus: in Diptera, is a rounded callus forming the anterior superior angle of the mesothorax.

Humeral carina: in Coleoptera, an elevated ridge or keel on the outer anterior angle of elytra.

Humeral cross-vein: (Comst.); extends between the costa and subcosta close to base.

Humeralis: Coleopteran; when the elytral has an angulated projecting margin at base.

Humeral stripe: in Odonata, covers the humeral suture.

Humeral suture: in Odonata, runs from just in front the base of the fore-wing to the edge of the median coxa, separating the mesepisternum from the mesepimeron.

Humeral veins: in Lepidoptera, secondary veins on posterior wings of Lasiocampids, developed to strengthen the humeral angle.

Humerus: the shoulder: in Coleopteran; the basal exterior angle of elytra: in Diptera, the anterior superior angles of the mesothorax: in Orthoptera, the femur of the fore-leg: in Hymenoptera, applied to the subcostal vein in some groups.

Humid: applied to regions in which the normal rainfall is sufficient to produce ordinary farm crops without irrigation: see arid.

Hyacinthine: the purple blue of the hyacinth [between mauve and lilac].

Hyaline: vitreous: transparent or partially so.

Hyaloplasm: the clear, semi-fluid material between the meshes of the cell reticulum.

Hybrid: the progeny from the mating of two species.

Hydradephaga; -ous: applied to aquatic, predatory pentamerous beetles with filiform antennae: see adephagous.

Hydro: relating to water: a combining form used as a prefix.

Hydrolysis: the chemical decomposition of a compound by water, causing formation of a new compound.

Hydrophilous: applied to species living in low, damp places.

Hymen: a thin plane membrane serving as a partition.

Hymenoptera: membrane-winged: an ordinal term applied to insects with four membranous wings with few veins, the anterior usually larger than the posterior; mouth mandibulate; head free; thorax agglutinate, transformations complete.

Hyoid: having the form of the Greek upsilon, Y

Hypermetamorphosis: when an insect passes through more than the normal number of stages; the interpolated stages coming usually between the full-grown larva and adult.

Hyperparasite: is a form that is parasitic upon another parasite.

Hypertely: beyond the bounds of the useful: those forms whose resemblance to other objects is closer than needful, or without apparent object.

Hypertrigonal space: = supra-triangular space; q.v.

Hypertrophied: abnormally large or excessively developed.

Hypnody: lethargy; a condition similar to or identical with hibernation.

Hypertrophy: any abnormal enlargement or excessive development.

Hypoblast: = entoderm.

Hypocrateriform: salver-shaped.

Hypodactyle: the so-called labium of Hemiptera.

Hypoderm -is: the cellular layer which secretes the chitinous cuticula and in this sense = epidermis: specifically applied to the lining membrane of elytral and hemelytra.

Hypodermatic: of or concerning the hypodermic.

Hypodermic: under the skin.

Hypoglottis: the under surface of the tongue = hypoglottis.

Hypoglottis: a sclerite inserted between rectum and labium in many Coleopteran.

Hypognathous: having the mouth parts directed more or less vertically ventrad.

Hypographous: shaded; applied to a fascia that becomes gradually darker.

Hypomeron -a: in Coleopteran; the inflexed edge of the pronotum (pronotal hypomera); and the raised lower margin of the epipleural (elytral hypomera) (see epipleural) fold.

Hypopharyngeal: relating to the hypopharynx.

Hypopharyngeal sclerites: in bees, a pair of strap-like pieces along the hypopharynx to the mentum: see also epipharyngeal sclerites.

Hypopharynx: a sensitive and sensory structure on the upper surface of labium that serves as an organ of taste, or true tongue.

Hypopleura: in Diptera, the space over the middle and hind coxa, between the metapleura and pteropleura: the side of the metasternum: the mesepimeron of the mesothorax.

Hypoptere: = tegula; q.v..

Hypopygium: the anus: more specifically the lower plate of the anal opening: in Diptera, the male sexual organs and terminal segments of abdomen = propygium.

Hypostoma: in Diptera; that portion of the head included between antennae, eyes and mouth: in Hemiptera: the lower part of face.

Hypotenuses: in Odonata; the simple or broken cross-vein between media 4, and cubitus 1, forming outer boundary of triangle.

Hypotypes: includes specimens upon which supplementary descriptions are based: = apotypes.

I

Iceous or Icius: suffix; expresses a likeness or the possession of a character see aceus.

Icotypes: typical specimens which serve for purposes of identification, but have not been used in literature.

Idiotype: a specimen named by the author after comparison with the type, but not also a topotype.

Ignitus: fire-red [vermilion].

Ileo-colon: the anterior portion of the hind-gut, extending from the mid-gut to the rectum, when not distinctly differentiated into ileum and colon.

Ileum: the small intestine; begins at end of chylific ventricle at the point where malpighian tubules join, and extends to colon.

Imaginal: pertaining to the adult or imago.

Imaginal buds, cells, or discs: in forms with a complete metamorphosis are those embryonic cells around and from which the organs and appendages of the future imago develop.

Imago: the adult or sexually developed insect.

Imbricate: arranged or appearing like the scales on a fish or the shingles on a roof.

Immaculate: destitute of spots or marks.

Immarginate: without an elevated rim or margin.

Immersed -us: inserted, imbedded or hidden in.

Imponderable: that which cannot be weighed.

Impregnate-ed: to make or made fertile or pregnant: fertilized.

Impressed -us: a surface with shallow depressed areas or markings.

Impubis: without hair.

Inaequalis: unequal.

Inarticulate: not jointed or segmented.

Inaurate -us: golden yellow [pale cadmium yellow].

Ineanus: hoary.

Inch: the English and American standard of length in insect measurement: it is = 12 lines and = 25.4 mm.: usually expressed in units and hundredths, as 1.01.

Incised: notched or deeply cut into.

Incision: any cut into a margin or through a surface: the marginal slits or notches in Coccidae.

Incisure: an impressed line marking the junction of two segments: an incision.

Inclinate -us: leaning or inclining.

Inclusus: when one part is wholly or partially hidden in another.

Inconspicuous: not attracting attention or quickly noticeable.

Incrassated: thickened: rather suddenly swollen at some one point, especially near tip.

Incubate: to brood: to cause to develop; as an egg.

Incumbent: lying one over another: wings when they cover the dorsal horizontally.

Incunabulum: = folliculus and cocoon; q.v.

Incurved -ate: bowed or curved inwards.

Independent: in Lepidoptera; that vein of the wings that arises from the cross-vein closing the cell, and does not branch directly from any vein reaching the base: it is v. 5 of the numerical series in both wings and the media of Comstock.

Indeterminate: not defined nor well marked; obscure: of no constant form or shape.

Indigote: a very deep indigo blue.

Indirect: applied to metamorphosis = complete.

Indumentum: a covering of hairs, scales or tufts.

Indurated: hardened.

Indusium: the case made by an insect larva: a membranous layer of the embryo of Locustidae below the serosa.

Inequal: a surface with irregular elevations and depressions.

Inermis: unarmed: without spines or spurs.

Infericornia: Hemiptera; in which the antenna appear to be inserted well down on the sides of head; e.g. Lygaeidae.

Inferior: beneath, below or behind: a term of position.

Inferior appendage -es: in male Odonata the lower one or two of the terminal abdominal parts used to clasp the female in copulation.

Inferior wings: = hind wings or secondaries: q.v.

Infero-posterior: below and behind: refers to location.

Inflated: blown up; distended bladder-like.

Inflected: bent inward at an angle.

Inflexus: = inflected.

Infra: below or beneath: opposed to supra.

Infra-anal lobe: a thick, conical fleshy lobe, often ending in a chitinous point, situated beneath the vent in caterpillars.

Infra-cereal plates: in Orthoptera - generally inconspicuous paired plates which underlie in part the cerci and in part the lateral portion of the supra-anal plate.

Infra-clypeus: = ante-clypeus and rhinarium: q.v..

Infracted: abruptly bent inward, as if broken.

Infra-genital: below the genital opening or process.

Infra-marginal: situated below or behind the marginal cell.

Infra-median vein; in Orthoptera: = ulnar vein: q.v.

Infra-ocular: applied to the region below and between the eyes.

Infra-oesophageal: situated below oesophagus; see sub-oesophageal.

Infra-stigmatal: situated below the stigmata or spiracles.

Infringing: encroaching upon.

Infumated: clouded.

Infundibuliform: funnel-shaped.

Infuseated: smoky gray-brown, with a blackish tinge [Roman sepia].

Ingens: unusually large or disproportionate in size.

Ingluvies: the crop; q.v.

Inner lobe: of maxilla = lacinia: q.v.

Inner margin: the line extending along the lower or interior edge of the wing from the base to the hind or anal angle.

Innervate: to supply with nerves.

Innotatus: without markings.

Inocular: inserted in the inner margin of and partially or wholly surrounded by the eye.

Inquiline: a species living in a gall or other structure prepared by a different species, not as a parasite but as, a guest.

Inquiline: living as guests in the homes of others; as in galls.

Insect: a member of the class Insecta strictly limited.

Insecta: broadly defined, contains all articulates that are also tracheates and have the head free from the thorax; more strictly limited to those forms that have only three pairs of thoracic legs in the adult stage and a limited number of segments.

Insectary: a place or building where insects are bred and studied.

Insectivorous: feeding upon or devouring insects.

Insectologist: a student of insects: = entomologist.

Insectology: the science of insect study: = entomology.

Insertion: the point or place where a part is inserted: a part that is inserted: the act of inserting.

Insertus: a part that has its base set into another.

In situ: in its natural place or normal position.

Instar: the period or stage between molts in the larva, numbered to designate the various periods; e.g. the first instar is the stage between the egg and first molt, etc.: see stadium.

Institia: stria or furrows of equal width throughout.

Instrumenta cibaria: mouth parts of a mandibulate insect as a whole.

Instrumenta suctoria: mouth parts of a haustellate insect as a whole.

Integer: entire: applied to a margin without incisions.

Integument: the outer covering to the insect body.

Inter: between; among.

Inter-alar space: in Odonata; the terga of meson- and meta-thorax.

Interantennal: between the basal segments of antennae.

Inter-articular: the membranous tissue between joints or segments.

Intercalary -ies: additional or inserted between others; as a vein: plural; added or supplementary longitudinal wing reins: see under specific headings; i.e. anterior, etc.: in Ephemerides, certain longitudinal veins between the 8th (anal) and 9th (1st maxillary) and not branches of either: in Diptera, the anterior intercalary (Loew) = the discoidal, and the posterior intercalary = the cubitus 1 of Comstock: applied to an evanescent sclerite in the embryo between antenna and mandible; also termed premandibular.

Intercostal: between veins or costae; usually in the narrow grooves between veins in the costal region of a wing.

Intercostula: those small, vein-like structures between the normal veins, visible on a wing margin but lost toward the disc.

Intercoxal process: in Coleopteran; a median protrusion of the basal segment of abdomen between the hind coxae.

Intermediate: lying between others in position or possessing characters between two other forms.

Intermediate field: of termini is = discoidal field q.v.

Internal area: in Hymenoptera; the posterior of the three areas between median and lateral longitudinal carina on the metanotum third lateral area.

Internal cell: in Hymenoptera (Pack.) 2d anal (Comst.).

Internal triangle: in Odonata see triangle.

Internal veins: in Lepidoptera, from one to three in number, run free from base to outer margin near hind angle; never branched;1a to is in the numerical series: = anal veins (Comst.).

Interneural: between the nerves (or veins) of wings.

Interno-mandibular: applied to one of the pairs of salivary glands in bees, situated at the inner side of base of mandible.

Internomedian: in Orthoptera; = cubitus (Comst.); q.v.

Interocular: between the eyes.

Interplical: lying between folds; specifically applied to the alternate ridges and grooves in anal area of secondaries of Orthoptera.

Interposed sectors: in Odonata; the shorter longitudinal veins occurring in the wings of some species between the chief veins; = supplementary sectors. Interrupted: broken in continuity, but with the tips of the broken parts in a right line with each other.

Intersegmental: = interarticular; q.v.

Interspace: Coleopteran; the plane surface between elytral striae: Lepidoptera spaces between wing veins not included in closed cells.

Interspaceal: occurring in the interspaces between two wing veins or two elytral striae.

Interstice -tium: space between two lines, whether striate or punctate.

Interstitial line: the elevated ridge between two striae or series of punctures.

Interval: the space or time between two structures, sculptures or periods of development.

Interventricular: the inner valve between the chambers of the heart.

Interventricular valvule: of heart, lies in front of seluilunar valve.

Intervenular: in thespace between two veins.

Intestinal caecum: that point of the large intestine in front of the junction with the small intestine.

Intestine: that part of the alimentary canal through which the food passes from the stomach, in which absorption is completed and the excretions are formed for expulsion.

Intima: the lining membrane of the trachea: see endotrachea.

Intorted: turned or twisted inwardly.

Intra-: within: between.

Intra-alar bristles: in Diptera; a row of two or three between the supra-alar and dorso-central groups.

Intracellular: occurring within the cell or in a cell.

Infra-humeral bristles: in Diptera calyptrata; occur immediately in front of the thoracic suture, between the humeral callus and the presutural depression.

Infra-ocular: situated within the eye, actually or apparently.

Intra-pulmonary: that method of respiration which does not involve movements of the outer body wall and is confined to the respiratory organs.

Intrauterine: applied to development, when the young hatch within the vagina of the mother.

Intricate: irregular: confused; applied to markings and sculpture.

Intromittent: used for throwing within.

Intromittent organ: the penis; q.v.

Introse -um: directed inward, toward the body.

Intrusus: seemingly impressed with a sharp point.

Intumescent: enlarged; swollen: expanded.

Invaginate: when a tubular or vesicular part is turned inward or retracted within the body wall.

Invagination: a pouch or sac formed by an infolding or indrawing of the outer surface.

Investitus: unclothed: a surface without scales or hair.

Involucrate: = involute.

Involucrum alarum in Dermaptera a flap of the metanotum.

Involute: spirally rolled inwardly.

Involuti: butterflies whose larvae live in a folded leaf; Hesperidae.

Iridescent: a surface which reflects the prismatic hues.

Iridicolor: any color so broken up as to reflect the prismatic hues.

Iris: the circle which, in an ocellate spot surrounds the pupil.

Irised: with rainbow colors.

Iris-pigment: = iris tapetum.

Iris tapetum: the pigment layer of the compound eye just below the crystalline cone.

Irregular: unequal, curved, bent or otherwise twisted or modified without order or symmetry, e.g. certain antennae.

Irrorate: marked with minute points; freckled.

Isabelline -us: pale yellow with some red and brown [chronic lemon with a little carmine and roman sepia].

Ischia: = pleura; q.v.

Iso-: equal.

Isolate: to separate out from others; occurring alone.

Isomers: that series of Coleoptera in which the tarsi have an equal number of joints on all feet.

Isomerous: with equal number of tarsal joints on all feet := homoeomerous.

Isomorphous: having the same form, appearance or construction.

Isopalpi: that series of Trichoptera in which the palpi of both sexes have the same number of joints.

Isoptera: equal winged: an ordinal term for insects with four, similar, net-veined wings; mouth mandibulate; thoracic rings similar, loosely jointed metamorphosis incomplete: the Termitidae. {Scanner's note: In modern nomenclature the Isoptera constitute the order of all termites; the Termitidae are just one family within the Isoptera.}

Isotypical: a genus described from more than one species, all of which are congeneric.

-itus: = -atus; q.v.

-ius: suffix; having the power or ability to.

J

Jabot: the crop; q.v.

Janthine: violet colored.

Jaw-capsule: contains the mouth structures in those dipterous larvae in which the head is differentiated.

Johnston's organ: a complex nervous structure in the basal joint of dipterous antennae.

Joint: a segment or part between two incisures: an articulation.

Jubate -us: fringed with long pendent hairs.

Juga: the lateral anterior lobes of the head of a Heteropteron; each side of the tylo.

Jugatae: that series of Lepidoptera in which there is a jugum instead of a frenulum to unite the wings in flight.

Jugular: of or pertaining to the throat.

Jugular sclerite: small sclerite in the membrane connecting the head with the thorax: see cervical sclerite.

Jugulum: that sclerite just behind the sub-mentum; =gula: that cavity of the posterior part of the head to which the neck is annexed: the lateral and under parts of the prothorax.

Jugum: in certain Lepidoptera and Trichoptera, a lobe or process at the base of primaries, overlapping secondaries and holding the two together in flight.

K

Katabolic: the destructive change from animal tissue to waste product: see anabolic.

Keel: an elevated ridge or carina.

Kermesinus: dark red, with much blue [purple lake].

Key: a tabular or other arrangement of species, genera or other classification according to characters that serve to identify them.

Kidney-shaped: like a kidney in outline; convex on one long side, concave on the other, the ends evenly and somewhat obtusely rounded: bean-shaped.

Knee: the point of junction of femur and tibia.

L

Labellum -a: the sensitive ridged tip of the mouth structures of certain Diptera: a prolongation of the labium covering the base of rostrum in Coleoptera and Hemiptera.

Labial: referring, pertaining or belonging to the labium.

Labial segment: the 7th segment of head = second maxillary segment.

Labial suture: is between labium and mentum.

Labiate: lip-like or having lip-like sutures.

Labipalp: a labial palpus.

Labis: the slender abdominal forceps in some Lepidoptera.

Labium: the lower lip: a compound structure which forms the floor of the mouth in mandibulate insects, behind the first maxilla and opposed to the labium; formed by a fusion in embryonic life of separate right and left maxilla-like halves: in some of its developments referred to as the tongue.

Labral suture: is between labrum and clypeus.

Labro-frontal lobes: of brain, = trito-cerebrum; q.v.

Labrum: the upper lip; covers the base of the mandible and forms the roof of the mouth.

Labrum-epipharynx: in the mouth of piercing Diptera is the central unpaired lancet.

Lac: a mixture of resin, wax and other substances produced by certain scale insects as a protective covering.

Lacer: a lappet; applied to a margin with irregular, broad and deep emarginations, leaving lappet-like intervals.

Lacerated: ragged; torn in appearance; see lacer.

Lacinia: the inner lobe of first maxilla, articulated to the stipes, bearing brushes of hair or spines: a blade: in Diptera, forms a flat lancet-like piercing structure and is never jointed.

Lacinia exteriores and interiores: in Apidae, the palpiger and paraglossa often used for the gales and lacinia of maxilla.

Laciniated: jagged; cut into irregular fragments.

Lacte: milk-white.

Lacteal: relating to milk; milky in appearance.

Lactescent: secreting or yielding a milky fluid.

Lacteous -eus: white, with a slight bluish tinge, like skim-milk.

Lacunae: irregular impressions or cavities: specifically the non-walled cavities of the body.

Lacunose: pitted; the surface covered with small cavities.

Laemodipodiform: like a laemodipod; similar to the larva of a walking stick.

Laete: bright.

Laevis -igatus: smooth, shining and without elevations: said of a surface.

Lamella: a thin plate or leaf-like process.

Lamellate: antennae with the club formed of closely opposed leaf-like surfaces, the concealed surfaces set with sensory pits.

Lamellicornia: those beetles in which the antennae terminate in a lamellate or leaf-like club.

Lamelliform: made up of or resembling leaves, blades or lamellae.

Lamina -ae: a chitinous plate or plates.

Lamina externa: the paraglossa.

Lamina interna: the ligula.

Lamina subgenitalis: the sub-genital plate; q.v.: in roaches the 7th ventral plate of females and 9th ventral plate of males.

Lamina supra-analis: = supra-anal plate.

Laminate: formed of thin, flat layers or leaves.

Laminato-carinate: with an elevated ridge or keel, formed of thin plates.

Laminiform: layer-like: having the appearance or made up of lamina.

Lana: wool: the long hair on the abdomen of some Lepidoptera.

Lanate -atus: woolly: covered with dense, fine, long hairs, so distinct that they may be separated.

Lanceolate: lance- or spear-shaped: oblong and tapering to the end.

Lanceolate cell: in Hymenoptera (ort.); - 2d anal (Comst.).

Lancet: indiscriminately applied to any piercing mouth structure.

Lanuginose -us: with long, curled hair dispersed over the surface: see crinitus.

Lanugo: slender single hairs.

Laparostict: that series of lamellicorn beetles in which the abdominal spiracles are situated on the connecting membrane between the dorsal and ventral rings.

Lapidicolous: living under deeply imbedded stones.

Larva: the second stage of insect development; comes from the egg or ovum, grows, and according to its kind, changes to a pupa or chrysalis or to an imago; bears various names in the different orders: see nymph; caterpillar slug; maggot; grub.

Larvarium: a tube or case made by a larva as a shelter or retreat.

Larvatae: asked; applied to coarctate and obtect pupae.

Larvina: a maggot: a dipterous larva without distinct head or legs.

Larvule: applied to early stages of Ephemerid larvae when they appear to have no developed respiratory, circulatory or nervous systems.

Lashed: eyes that have a more or less complete fringe of stiff hairs or bristles at the orbits.

Lasureus: a very dark blue [French blue with some black].

Laterad: toward the side and away from the median line.

Lateral: relating, pertaining or attached to the side.

Lateral areas: in Hymenoptera; on the metanotum, the three spaces between the median and lateral long carinae; the upper is the external or first lateral basal area; the second is the external or central lateral area; the third is the middle, internal, apical or third lateral area.

Lateral bristles: in Diptera; situated at or near the lateral margins of the abdominal segments.

Lateral carinae: in Orthoptera; on the head, extend downward from the front margin of the eyes: on prothorax extend along each lateral margin of the dorsum.

Lateral foveolae: in Orthoptera: foveate depressions on the margins of the vertex near the front border of the eye.

Lateral line: in caterpillars is at the margin of the dorsum between sub-dorsal and supra-stigmatal line.

Lateral lobe: of the labium in Odonata, corresponds to the paraglossa with palpiger and palpus (Gerstaecker) or, more probably, to the palpus alone (Butler).

Lateral lobes: the deflexed portions of pronotum that cover the sides of pro-thorax in many Orthoptera: in certain Hymenoptera, lie on each side of the parapsidal furrows of mesoscutum and = scapulae.

Lateral longitudinal area: of Hymenoptera, extends between the median and pleural carinae of metanotum.

Lateral ridge: in slug caterpillars, extends longitudinally along the lateral series of abdominal tubercles.

Lateral scale: one of the lateral processes of the ovipositor in Cynipidae, lying within and below the anal scale.

Lateral space: in slug caterpillars is the area on each side of the body between the subdorsal and lateral ridges.

Lateral sutures: of the thorax in Odonata, are situated on the sides of thorax, the first separating the metepisternum from the mesepimeron; the second separating the metepisternum from the metepimeron; the first more or less obsolete in the Anisoptera.

Lateral tubercle: lateral on thoracic and abdominal segments of caterpillars: it is 3 of the abdomen, 2a of thorax: constant (Dyar).

Latericeous: = lateritius: q.v.

Lateritius: yellowish-red; yellowish brick color [pale clay yellow with a little red].

Laterodorsal: the point of junction of dorsum and pleurum.

Lateropharyngeal: applied to the 4th pair of salivary glands in bees; situated on each side of the pharynx.

Laterostigmatal: situated on the side, immediately above the spiracle.

Lateroventral: the point of junction of sternum and pleurum.

Latero-ventral metathoracic carina: in Odonata; forms the dividing line between the metepimera and the metasternum.

Latescent: becoming obscure or hidden.

Latreille's segment: the first abdominal segment of those Hymenoptera in which it is fused with the thorax:= median segment, propodeon, propodeum.

Latticed: = cancellate; q.v.

Latus: the side: broad.

Latuscula: the facets of the compound eye.

Leathery: having the appearance or texture of leather.

Lectotype: a co-type chosen, subsequently to the original description, to take the place which in other cases a holotype occupies.

Leg -s: the jointed appendages attached to the thoracic segments, used in walking: the organs of locomotion other than wings: unjointed organs of locomotion are pro-legs or false legs; q.v.

Legion: a group of genera, subequal to a tribe.

Legnum: the margin of a squama.

Lemniscate: ribbon-like: in the form of an 8.

Lenticular: round, doubly convex; like a lens or lentil.

Lepidoptera: scale-winged: an order of insects with spirally coiled haustellate mouth structures; head free; thorax agglutinate; transformations complete four scale-covered wings.

Lepidopteric acid: a green pigment obtained from the wing scales of Lepidoptera; a derivative of uric acid: see Lepidotic acid.

Lepidopteron: a butterfly or moth: one of the Lepidoptera.

Lepidotic: set with minute scales.

Lepidotic acid: a yellow pigment obtained from certain butterfly scales a derivative of uric acid: see Lepidopteric acid.

Lepis: a scale.

Leprous: with loose, irregular scales.

Leptiform: = compodeiform; q.v.

Leptos: small, fine.

Lethargic: torpid or inactive.

Leucine: a white crystalline compound, the product of animal decomposition, found in the malpighian tubes: as a color, cheesy white.

Leucocytes: pale, unicellular bodies, numerous in the insect blood.

Levator: a muscle that raises an organ or a part.

Levigate -us: with a smooth, somewhat shiny surface.

Liber: free.

Ligament: a band or sheet of tough, fibrous tissue between two parts or segments.

Ligneous -eus: wood brown [Vandyke brown].

Lignivorous: feeding upon wood or woody tissues.

Ligula: the central sclerite of the labium, borne upon the mentum, usually single, sometimes paired: often used as synonymous with "glossa" and "tongue": corresponds to the united laciniae of right and left maxillae: see also elytral ligula.

Ligulate: strap-shaped; linear, much longer than broad.

Lilacinous: lilac-colored [lilac].

Limaciform: having the form of a Limax or slug; said of larvae.

Limb: the circumference: the area surrounding the disc.

Limbate: when a disc is surrounded by a margin of different color.

Limbus: the area along the outer and posterior margin of wing beyond the closed cells; Homoptera, Cicada.

Limpid: clear and transparent: applied to wings and ornamentation.

Line: a narrow streak or stripe: as a term of measurement, one- twelfth of an inch; commonly used by English and early American authors.

Linea: a line or narrow stripe.

Linear: straight; in the form of a right line.

Lineate: marked with lines or streaks: lined.

Lineolet: a delicate fine line.

Lingua: the tongue; applied in Hymenoptera, to the ligula: in Lepidoptera and Diptera, to maxillary structures: has also been used for the hypopharynx, and that use might be adopted: a median organ of the hypopharynx in Apterygota.

Lingua spiralis: the spiral tongue of Lepidoptera: see glossa.

Linguiform: tongue-shaped: linear, with the extremities obtusely rounded.

Lingula: in Aleurodidae, a more or less slender tongue or strap-shaped organ, attached cephalad within the vasiform orifice: a term proposed by Leuckart for the ligula of the bees.

Lipochromus: without color.

Lipoptera: = Mallophaga; q.v.

Literate: ornamented with characters like letters.

Littoral: living along the sea-coast or in the shore debris: strictly, between tide marks.

Littoralia: Heteroptera that live in marshes.

Litura: an indistinct spot, paler at its margin.

Livid: yellowish gray with a violet tinge: greenish gray.

Lobate -us: divided by deep, undulating and successive incisions.

Lobe: any prominent rounded process or excrescence on a margin: specifically, the rounded, tooth-like processes on the margin of the pygidium of the Diaspinae: also applied to lateral expansions of the abdominal segments.

Lobes: of the maxilla; see galea (outer) and lacinia (inner): of the mentum in Coleoptera, are the lateral expansions shielding the base of the central organs.

Lobes of pronotum: in Orthoptera; the spaces or areas formed by three transverse impressions on the pronotum: that which borders the head is the anterior lobe, the hindmost is the posterior lobe, those intervening are the middle lobes.

Lobiform: shaped like a lobe or rounded process.

Lobulate: divided into, or with many small lobes or lobules.

Lobule: in Coccidae, one of the two distinct parts of which a lobe is sometimes composed.

Lobulus: the partly separated portion of the wings of some flies and of secondaries in some Hymenoptera: also used as = alula; q.v.

Lobus: of maxilla = galea; q.v.

Locomotion: organs of, are legs and wings.

Longicorn -ia: having the antennae as long or longer than the body; specifically the Cerambycid beetles.

Longitudinal: in the direction of the long axis.

Longitudinal veins: are those that extend lengthwise through the wing either directly from base or as branches of one that does start there: they are named or numbered, and differently in the different orders.

Loop: applied to that structure at base of innerside of primaries into which the frenulum of male moths is fitted: see retinaculum.

Looper: applied to geometrid and other caterpillars in which some or all the middle abdominal legs are wanting and which move by bringing tail to thorax and forming a loop of the intervening segments.

Lora: the chitinous bands connecting the submentum with the cardo of maxilla (Comst.): the submentum: small cords upon which the base of the proboscis is seated (Say): the anterior part of the genae at the edge of the mouth: the corneous processes to which the muscles flexing the mouth in certain Diptera are attached, and in that sense the palpifer of the maxilla: in Homoptera, the small sclerite at side of clypeus and front, extending laterally to the genae.

Lorum: in bees: the angular piece upon which the sub-mentum rests.

Lower austral zone: occupies southern part of United States from Chesapeake Bay to the great interior valley of California. Is interrupted by the continental divide in eastern Arizona and west New Mexico and divided according to conditions of humidity into an eastern or Austroriparian and western or lower Sonoran area.

Lower field: in termini; see costal field.

Lower fronto-orbital bristles: in Diptera: are on the lower part of front, above the antennae, along the orbit.

Lower margin: of tegmina (Thomas), is the costal or anterior margin of other authors.

Lower radial vein: in Lepidoptera (Holland) media 2 (Comst.).

Lower sector of triangle: in Odonata - = cubitus 2 (Comst.).

Lower Sonoran faunal area: comprises the most arid deserts of North America, beginning west of lat. 98 degrees in Texas: sends narrow arms into southern New Mexico, is interrupted by the Continental Divide; covers a large part of w. and s. Ariz., s. w. Nev., s. w. Calif., a portion of central Calif., and most of Lower Calif. These areas are irregular and incapable of brief definition.

Lubricate -ous: covered with a slippery mucus.

Lucid: shining; applied to luminous insects.

Luciferase: a substance in the nature of an enzyme, existing in the luminous organs of light-giving beetles.

Luciferine: a substance in the blood of luminous beetles which, when brought into contact with luciferase, produces light.

Luciferous: light giving.

Lucifugous: fleeing the light: applied to nocturnal forms or those that live in concealment.

Lumen: the cavity of an organ: the inner surface of a tube: the hollow portion of a gland or vesicular structure.

Luminescence: applied to the light of fire-flies, as a substitute for phosphorescence.

Lumper: one who, in describing species or genera recognizes only prominent or obvious characters to the exclusion of minor color or variable characters of maculation or structure: see splitter.

Lunaris or Lunate: crescent-shaped: formed like a new moon.

Lunula: a small lunule or crescent.

Lunulae: in Hymenoptera, crescent-shaped marks near the orbits.

Lunulate: a line, when made up of a series of small lunules.

Lunule: a lunate mark or crescent.

Lurid -us: dirty brown with a bluish tinge [pale brown + a little French blue]: also used to indicate an obscuring of bright colors.

Luteo -testaceous: dark clay yellow.

Luteous -eus: clay yellow [pale clay yellow].

Lutescent: becoming or appearing to be clay yellow.

Lutose -us: apparently or really covered with dirt.

Lymphatic: producing, carrying or relating to the lymph.

Lyrate: lyre-shaped: cut into several transverse segments, and gradually enlarging towards the extremity.

Lyre: the upper wall or border of the spinning tube of caterpillars.

M

Macrochaetae: the long bristles occurring singly on the body of Diptera.

Macropterous: long or large winged.

Macrosomites: the primitive regions of primitive hand of the insect embryo.

Macula: a colored mark larger than a spot; of indeterminate figure.

Maculate -ed: spotted or marked with figures of any shape, of a color different from the ground.

Maculation: the ornamentation or pattern of marking.

Maculose: spotted; with many marks or spots.

Maerianum: "that segment of the post-pectus situate one on each side behind the acetabulum and parapleurum; it supports the posterior feet": see meriaeum.

Magenta: pinkish red; an aniline product.

Magis: more.

Maggot: applied to the footless larvae of Diptera.

Mala: a lobe: a ridged or grinding surface.

Mala mandibularis: the grinding surface or area of a mandible.

Mala maxillae: the globes of maxilla; outer or galea, inner or lacinia; where only one is present, the term refers to that one.

Malaxation: a kneading or softening; applied to the chewing and squeezing by fossorial wasps of insects captured as food for their larva.

Male: that sex having organs for the production of spermatozoa: designated by "?", the astronomical sign for Mars. {Scanner's comment: The sign for Mars being an diagonal arrow rising from a circle, and pointing upwards towards the right.}

Mallophaga: wool-eaters: an ordinal term applied to biting lice: wingless: mandibulate; thoracic segments similar; no metamorphosis: =Lipoptera.

Malpighian tubules: long, slender tubules, varying in number, serving as excretory organs, entering the alimentary canal at the point of junction of chylific ventricle and ileum: said to be analogous with kidneys: = biliary vessels.

Mammilate: with nipple-like protuberances or processes.

Mandible: the lateral upper jaws of a biting insect.

Mandibular strobe: a broad deep groove on outer side of mandible in some Coleoptera.

Mandibular segment: the fourth or mandible bearing segment of head.

Mandibulata: that series of insects in which the adults have functional mandibles used for biting.

Mandibulate: with jaws or mandibles.

Manicate -us: fur-like: surface clothed with irregular depressed hair.

Manitrunk: that part of trunk that bears the anterior legs: =prothorax.

Manometabola: with a slight or gradual metamorphosis and without a resting stage; e.g. the Orthoptera.

Manubrium: in Coleoptera: that part of the mesosternum in Elateridae which forms the process for fitting into the cavity of the prothorax: in Collembola the basal part of the furculum.

Manus: the hand: formerly applied to the anterior tarsus.

Marbled: irregularly mottled, gray and white, like marble; = marmoratus.

Marcescent: shrivelling.

Margaritaceous: shining, like mother of pearl = nacreous; q.v.

Margin: that portion of a surface within the edge, bounded on the inner side by the sub-margin and consisting of a more or less dilated imaginary line.

Marginal: of, belonging to, or near the margin.

Marginal area: in Orthoptera; see mediastinal area.

Marginal bristles: in Diptera; are inserted on the posterior margin of the abdominal segment.

Marginal cell: in Diptera (Williston):= subcostal (Shiner):= radial (Comst.): in Hymenoptera:= radial and 2 (Comst.): in general that cell beyond the stigma.

Marginal field: in tegmina = costal field: q.v.

Marginal nervure or vein: in Orthoptera, = costa (Comst.): in Hymenoptera (Norton) = radius 3 (Comst.): in general, the vein forming the marginal cell.

Margined -ated: bounded by an elevated or attenuated margin: when the margin is edged by a flat border.

Marmorate -us: spots and lines irregularly disposed, as in marble: marbled. Mask: in the nymphs of Odonata, the modified labium which, when at rest, conceals the other mouth parts.

Masticate: to chew.

Masticatory: formed for chewing or grinding; applied to the mouth parts and to the grinding structures in the gizzard.

Mastigium -ia: telescopic anal organs in certain caterpillars, serving to repel attacks of parasites.

Matrix: the formative substance from which cells and other structures are derived.

Maxilla: without any qualifying adjective, the second pair of jaws in a mandibulate insect; the most persistent when the mouth is modified, and represented by some functional part in all insects in which the mouth structures are useful: second maxillae, = the labium, or third pair of jaws in a mandibulate insect.

Maxillary: attached or belonging to the maxilla; e.g. palpi.

Maxillary palpi: the first pair of palpi, borne on the maxilla.

Maxillary pleurites: the lateral pieces, epimera and episterna of the maxillary segment.

Maxillary segment: the sixth segment of the head, bearing the maxillae.

Maxillary tendons: two slender rods in basal third of the muscid proboscis the remnant of the palpifer, to which muscles for flexing the proboscis are attached: see lora.

Maxillary tentacle: in female Pronuba: a specialized process of palpifer.

Maxillulae: a pair of appendages in Thysanurids, between mandibles and first maxillae.

Maxime: very much or very large.

Mealy: with a flour-like dusting: = farinose.

Mecaptera: = Mecoptera, q.v.

Meconium: the substance excreted by certain metabolic insects soon after their emergence from the chrysalis or pupa.

Mecoptera: long-winged: neuropterous insects with similar, large, unfolded wings; mouth mandibulate, prolonged into a beak: head free; thorax agglutinated; transformations complete: the scorpion flies or Panorpidae. Medi-: prefix, = middle.

Media: the fourth of the longitudinal veins extending from base through approximately the middle of the wing, not more than four branched, the branches numbered on margin from nearest apex, to 4 nearest anal angle: in Orthoptera; it is the median or externomedian: in Lepidoptera (Pack.), is cubitus (Comst.).

Mediad: toward the median plane or middle.

Mediafurca: a process extending internally from the meso-sternum, to which the muscles are attached.

Medial: referring to, or at the middle.

Medial cells: (Comst.), are anteriorly bounded by the media or its branches: in Hymenoptera (Mort.), includes median and cubital (Comst.)

Medial cross-vein: (Comst.), is between media 2 and 3.

Median 1: in Lepidoptera (Pack.), = media 2 (Comst.).

Median 2: in Lepidoptera (Pack.), = media 3 (Comst.).

Median 4: in Lepidoptera ( Pack.), = cubitus 2 (Comst.).

Median area: of wings in Orthoptera, lies between the radial and ulnar veins, radius and media (Comst.): of meta-thorax of Hymenoptera, is the middle of the dorsum, divided into three spaces or cells; 1st or basal area, 2d or Lipper median or areola; 3d or apical or petiolar area.

Median carina: Orthoptera; of head, is usually applied to a median dorsal carina, but has been also used for that which extends down the middle of front from the fastigium, and then = frontal costa: of prothorax, extends along the middle of pronotum.

Median cell: in Lepidoptera, is the closed area formed by a line extending from the end of subcostal to the end of the median veins, = radial (Comst.): in Hymenoptera, 1st median (Pack.), = medial (Comst.); 2d median (Pack.), - medial 4 (Comst.); 3d median (Pack.), = medial 2 (Comst.); 4th median (Pack.), = medial 1 (Comst.).

Median cross-veins: in Odonata; are those which cross median space.

Median foveola: in Orthoptera; the foveate depression of the vertex between the eyes: = central foveola.

Median forks: in Orthoptera, refers to the forks of the median vein.

Median furrow: lies between radius and media: in some Heteroptera, separates the embolium from the remainder of the corium.

Median lines: on the primaries of many moths: the first or t.a. crosses about one-third from base; the second or t.p. crosses beyond the outer third and is usually sinuate.

Median lobe: of labium in Odonata, is the partly divided glossa or ligula; probably corresponds to united glossa and paraglossae (Butler).

Median longitudinal carinae: on the metanotum of Hymenoptera, extend one on each side of the middle.

Median nervules: in Lepidoptera (Holland)1st = cubitus 2 (Comst.): 2d cubitus 1 (Comst.); 3d = media 3 (Comst.).

Median notch: in Coccidae, a notch in the edge of the pygidium, at the posterior extremity of the body.

Median plate: in Hymenoptera := sessiliventres, is the dorsal plate connecting the thorax and abdomen.

Median sector: in Odonata, = media 3 (Comst.).

Median segment: applied to the basal segment of the abdomen when it forms part of the metathorax: see propodeum.

Median shade or line: in Lepidoptera, crosses at or about middle of wings.

Median space: in Lepidoptera, is the area between the median lines: in Odonata, the cubital cell (Comst.); the space at base between submedian (radius) and postcosta (st anal); by Selys in 1896 and later used in the sense of medial cell of Comst.

Median vein: in Odonata and Lepidoptera, = radius (Comst.): in Lepidoptera, it runs from base to about middle, nearly through centre, and is four or five branched: in Hymenoptera, it is the 3d from costal margin.

Mediastinal: relating to the longitudinal median line or area.

Mediastinal area: in Orthoptera, the area between median or mediastinal vein and the costal or front margin: = marginal area.

Mediastinal vein: in Orthoptera and Diptera, = suhcosta (Comst.): also, in Diptera, = auxiliary vein (Meigen).

Medio-eubital cross-vein: between media 4 and cubitus, connecting the two series (Comst.).

Medio-ventral line: in caterpillars, extends along middle of under side.

Medipectus: the under side of meta-thorax: the mesosternum.

Mediproboscis: the middle third of the flexed proboscis of muscid flies.

Medi-thorax: =mesothorax; q.v.

Medius: middle.

Mega- Megalo-: large.

Melanic: with a blackish suffusion.

Melanism: an abnormal or unusual darkening: a suffusion with blackish.

Mellifera: honey-makers: applied to bees as a whole.

Melliferous: honey-producing, or producers of honey.

Mellisugous: honey-sucking: a feeder on honey.

Member: any one of the external appendages.

Membranaceous: thin, skin-like, semi-transparent, like parchment: of a thin, pliable texture.

Membrana retinens: the stretched part of the membrane around the rectum of butterfly larvae, used in the change to the chrysalis.

Membrane -ana: any thin, transparent, flexible body tissue: specifically the wing tissue between the veins: in Heteroptera, the thin membranous tip of the hemelytra.

Membranous or eous: composed of membrane or skin-like tissue.

Membranule: the small opaque expansion at base of wings in Odonata.

Meniscoidal: with one side concave the other convex, like a round segment from a hollow sphere.

Menognatha: insects in which both young and adults feed by mandibles; e.g. the Orthoptera: see menorhyncha and metagnatha.

Menorhyncha: forms in which both young and adult take food by suction e.g. Hemiptera: see metognatha and metagnatha.

Mental suture: in Coleoptera, the line between mentum and gula.

Mentigerous: bearing or having a mentum.

Mentum: a labial sclerite bearing the movable parts; attached to and sometimes fused with the sub-mentum; corresponds to the (united) stipes of maxillae: in Coleoptera, what is usually called mentum is really submentum: in Diptera, the term is applied to the posterior oral margin: in Hymenoptera, is part of "tongue," the second joint bearing the labial palpi, paraglossae and ligula.

Merdivorous: feeding upon dung or excrement: see scatophagous.

Meriaeum: the posterior inflected part of the metasternum in Coleoptera.

Meroistic: ovaries that secrete yolk or vitellaginous cells as well as ova.

Mesad: extending or directed toward the median plane.

Mesal: pertaining to, situated on or in the median plane of the body.

Mesenchym: that portion of the mesoderm that produces the connective tissues of the body.

Mesenteron: the mid-gut, stomach or chylific ventricle: the middle portion of the primitive intestinal canal, lined with entoderm.

Mesepimeron: in Odonata: the sclerite between humeral and first lateral suture.

Mesepisterna: in Odonata,- the oblique lateral pieces of mesothorax, meeting dorsally in a ridge.

Mesially: at or to the middle.

Mesinfraepisternum: a sclerite formed between propleuron, mesepisternum, mesepimeron and second coxa.

Meso: middle: as prefix, drops the o when stem begins with a vowel.

Mesoblast: the middles germ layer of the embryos: = mesoderm.

Mesoderm:= mesoblast: gives rise to muscular and circulatory systems.

Mesodont::= amphiodont: q.v.

Mesomeros: the 2d to 5th abdominal segments in Lepidoptera.

Meson: the middle plane of the body.

Mesonotum: the primitively upper surface of the 2d or middle thoracic ring.

Mesophragma: an internal prolongation of the metapraescutum, affording attachment to some of the wing muscles.

Mesopleura: in Diptera, the space before the root of the wing between the dorso- and sternopleural sutures: in Hymenoptera, the piece below the insertion of the wings.

Mesopleural bristles: in Diptera, are inserted in the angle formed by the dorso-pleural and meso-pleural sutures.

Mesopleural suture: in Diptera, runs from the root of the wings downward and separates the meso-pleura from the pteropleura.

Mesopleuron: the lateral surface of the meta-thorax.

Mesosternal cavity: in Elateridae, the opening into which the prosternal spine or mucro is fitted.

Mesosternal epimera: in Coleoptera; the narrow pieces separating the meta-sternal from the meta-sternal episterna.

Mesosternal episterna: Coleoptera; on each side of mesosternum between anterior border and epimera; generally separated by a distinct suture.

Mesosternal lobes: in Orthoptera; = mesosternellum, q.v.

Mesosternellum: in Orthoptera, two median lobes of the mesosternum, one on each side of the deep median notch: in general, the sternellum of the mesothorax.

Mesosternum: the underside or breast of the meta-thorax.

Mesostethidium: = meso-thorax: q.v.

Mesostethium: the middle piece of the underside of meta-thorax, between the middle and hind legs.

Mesostigma: in Odonata, the spiracles of second thoracic segment.

Mesosulcus: a central longitudinal furrow of mesosternum in Hymenoptera.

Mesotarsus: the tarsus of the middle leg.

Mesothoracotheca: the pupal covering of the meso-thorax.

Mesothorax: the second or middle thoracic ring; bears the middle legs and the anterior wings.

Mesotergum: = mesonotum; q.v.

Meta-: posterior: used as a prefix to designate the third thoracic ring and its parts.

Metablastic: relating to the ecto- or meta-blast or ectoderm.

Metabola: insects with a complete metamorphosis in which the larva does not resemble the adult, and the pupa is quiescent.

Metabolism: is transformation: the whole process or series of changes of food into tissue and cell-substance and of these latter into waste products the first of these changes being anabolic, the second katabolic.

Metabolous: undergoing metamorphosis or transformation.

Metacoxal plate: in Coccinellidae, that portion of the first ventral segment included above the ventral lines visible on that segment.

Metagnatha: insects which feed with jaws when young and by suction, with tubular mouths when mature; e.g. the Lepidoptera: see menognatha and menorhyncha.

Metagonia: the hind or anal angle of a wing.

Metallic: having the appearance of metal: applied to a surface or color.

Metaloma: the sutural or inner margin of primaries.

Metamere: a segment, somite or athromere.

Metameric: made up of segments or metameres.

Metamerism: the arrangement in metameres.

Metameros: in Lepidoptera. the 6th to 8th abdominal segments.

Metamorphosis: is that series of changes through which an insect passes in its growth from egg through larva and pupa to adult: it is complete when the pupa is inactive and does not feed; incomplete when there is no pupa or when the pupa is active and feeds.

Metamorphosis dimidio: an incomplete transformation.

Metamorphosis perfecta: a complete transformation.

Metanotum: the primitively upper surface of the third or posterior thoracic ring: in Diptera, the oval arched portion behind, beneath the scutellum best developed in flies with long, slender abdomen: e.g. Tipulidae.

Metaphragma: the hindmost internal thoracic septum.

Metapleura: in Diptera, a swollen space at the outside of the metanotum, between it, the pteropleura and the hypopleura; in Hymenoptera, the piece behind and below the insertion of the hind wings.

Metapleural bristles: in Diptera, are inserted in the metapleura.

Metapneustic: larva, chiefly dipterous, in which the spiracles are confined to the posterior segment.

Metapnystega: that circular area of metanotum behind the postscutellum.

Metapodeon: the abdomen behind the podeon or petiole in Hymenoptera.

Metasternal: relating or attached to the metasternum.

Metasternal epimera: small sclerite separating the metasternal episterna from the ventral segments.

Metasternal episterna: sclerite situated on each side of the metasternum, immediately behind the mesosternum epimera.

Metasternellum: the sternellum of the metathorax.

Metasternum: the underside or breast of the metathorax.

Meta-stethidium: = meta-thorax; q.v.

Metastigma: in Odonata, the spiracles of third thoracic segment.

Metastoma: in Orthoptera:= hypopharynx: q.v.

Metatarsus: applied to basal joint of tarsus, where that differs greatly in length or otherwise from the other joints: see sarothrum.

Metatergum: = metanotum; q.v.

Metathoracotheca: the pupal covering of the meta-thorax.

Metathorax: the third thoracic ring or segment; bears the hind legs and second pair of wings; variably distinct; sometimes closely united with the mesothorax and sometimes appearing as a portion of the abdomen.

Metatype: is a specimen named by the author after comparison with the type; according to some, it should be also a topotype.

Metazona: in Orthoptera, the dorsal surface of the prothorax behind the principal sulcus.

Metepimeron: in Odonata, lies behind the second lateral suture and extends ventrally to the sternum.

Metepisternum: in Odonata, is the sclerite between the first and second lateral thoracic sutures.

Meter: the standard of length in the metric system = 39.37 inches: see centimeter and millimeter.

Meticulose -us: is a maculation in the form of a series of colored flames.

Metinfraepisternum: in Odonata; the sclerite just above base of 3d coxa; below metepisternum and before metepimeron.

Metochy: the relation borne to ants by the tolerated guests in ant- hills; demanding nothing from and giving nothing to the ants; see symphily and synecthry.

Metopidium: the anterior declivous surface of prothorax in Membracidae.

Micans: shining: also a surface of which only parts are shining.

Microchaetae: small bristles, as opposed to macrochaetae, in Diptera.

Microergates: the dwarf workers among ants.

Micron: the unit of microscopic measurement = 001 mm.: represented by the symbol µ: the symbol µµ represents .001 of a micron. {Scanner's note: the µµ notation would no longer be valid.}

Micropterous: small winged.

Micropterism: the tendency to produce small wings; applied to a line of variation.

Micropyles: minute openings in the egg, through which spermatozoa enter.

Microsomites: small secondary rings or somites of the macrosomites in the embryo, which afterward become the body segments.

Microthorax: a supposed thoracic ring between the head and prothorax.

Middle apical area: = internal area; q.v.

Middle field: = discoidal field; q.v.

Middle lobes: of pronotum in Orthoptera; see lobes.

Middle pleural area: in Hymenoptera; the median of the three areas between lateral and pleural carinae: = 2d pleural area.

Mid-dorsal thoracic Carina: a ridge or elevated line at the meeting of the mesepisterna in Odonata.

Mid-gut: the chylific ventricle with the caecal glands, tubes or pouches.

Mid-intestine: = mid-gut.

Migrants: applied to that brood of plant lice which flies from one to an alternate food plant: any forms that fly from the place where they were born for food or other purposes.

MM.: = Millimeter: .001 meter = .039 of an inch: roughly 25 mm. are counted to an inch in measuring insects. {Scanner's comment: modern usage is lower case. So: mm.}

Mimetic: when a species mimics or resembles another or some other object in appearance; but not in structure and other characters.

Mimicry: strictly, the resemblance of one animal to another not closely related animal, living in the same locality; often loosely used to denote also resemblance to plants and inanimate objects: Batesian mimicry is where one of two similar species is distasteful (so-called model), the other not distasteful (so-called mimic);

Müllerian mimicry is where both species are distasteful.

Mines: applied to galleries or burrows between upper and under surface of leaf tissue, when made by larvae: they are linear, when they are narrow and only a little winding; serpentine, when they are curved or coiled, becoming gradually larger to a head-like end: trumpet- mines, when they start small and enlarge rapidly at tip; blotch mines, when they are irregular blotches tentiform, when the blotch mines throw the leaf into a fold on one side.

Miniate -us: of the color of red lead [vermilion with a slight admixture of dragon's blood].

Mirror: in Cicada; see specular membrane.

Mitosoma: the middle piece of a developing spermatozoon.

Mobile: movable: having the power of motion.

Model: see mimicry.

Modioliform: globular, truncated at both ends; like the hub of a wheel.

Mola or Molar: the ridged or roughened grinding surface of the mandible: when the mandible is compound, the molar corresponds to the subgalea of maxilla.

Monarsenous: that kind of union where one male suffices for many females.

Moniliform: beaded like a necklace.

Monochromatic: of one color throughout.

Monodactyle: with a single movable claw which closes on the tip of the other leg structures as in some parasitica.

Monodomous: ants in which each colony has one nest only.

Monoecious: when both sexual elements or glands exist in one individual.

Monogamous: a union where a female is fertilized by one male only.

Monomeri: insects with one-jointed tarsi.

Monomorphic: species of which only one sex (female) is known to exist.

Monophagous: insects feeding upon only one species or genus of plants.

Monothelious: a union where one female is fecundated by many males.

Monotrocha -ous: Hymenoptera in which the trochanters are single: having legs in which the trochanter is one-jointed.

Monotypical: a genus described from a single species, no other being known; or described from a single specified species with which are associated others believed to be identical in structure: see isotypical and heterotypical.

Moult: a period in the transformation when the larva changes from one instar to another: the cast skin of a larva that has moulted.

Mouth: the anterior opening into the alimentary canal, where the feeding structures are situated and in which the food is prepared for ingestion.

Mouth-parts: a collective name including labrum, mandibles, maxillae, labium and appendages = trophi.

Mucoreus: mouldy: a surface covered with small, fringe-like processes.

Mucro: a long, straight or curved process terminating in a point: the pro-sternal process in Elateridae: the terminal spine or process of an obtect pupa: "the median posterior point of the epigastrium when differentiated by elevation."

Mucronate: terminated in a sharp point.

Mucrones: in Collembola the two small end pieces of the furcula, proceeding from the dentes.

Mullerian association: a group of species belonging to different genera, often different families or even orders, having similar colors, possessing more or less distasteful qualities and living in the same locality.

Muller's thread: the common terminal thread of all the ovarian tubes.

Multangulate: with many angles.

Multi-: many; used as a prefix, often without the i.

Multiarticulate: with many joints or segments.

Multilocular: with many large cells, spaces or cavities.

Multipartite: divided into many parts.

Multiplicate: with many longitudinal folds or lines of plication.

Multispinose: with many spines.

Mumia: the pupa.

Munite -us: armed; provided with an armature.

Muricate -us: armed with sharp, rigid points.

Murinus: mouse colored [gray with some yellow].

Mushroom bodies: two stalked, mushroom-like bodies arising from procerebral lobes; supposed to be the seat of insect intelligence.

Muscle: the fleshy fibres of the insect body that serve to move the appendages and other body organs.

Mute: silent: without power to produce audible sound.

Mutic -us: unarmed: lacking processes where such usually occur.

Mutici: Acridiids without a posternal spines.

Mutilate -us: cut off: mutilated: abbreviated: not complete.

Mycetophagous: feeding upon fungi.

Myiasis: disease or injury caused by the attack of dipterous larvae.

Myoblast: a cell that produces muscular tissue.

Myrmecology: that branch of entomology that deals with ants.

Myrmecophilous: ant-loving: applied to insects that live in ant nests.

Mystacine -us: bcarded: with a hairy fringe above mouth or on clypeus.

Mystax: in Diptera; a patch of hair or bristles above the mouth, on the lower part of the hypostoma above the vibrissae.

Mytiliform: shell-like; as the middle feet in some aquatic Hemiptera.

N

Nacreous: pearly: resembling mother of pearl := margaritaceous.

Nail: a tarsal claw: specifically the stout pointed claws in predatory Heteroptera = unguis.

Naked: not clothed: lacking vestiture: a pupa when not inclosed in a cocoon or other covering.

Nasal suture: =clypeal suture; q.v.

Nasus: anterior termination of the face in certain Hymenoptera: the clypeus or a modification of it: in Odonata, the upper portion of the clypeus = supra-clypeus = postclypeus.

Nasuti: that type of termite soldiers that have the head prolonged into a point.

Natatorial -ions: formed for swimming.

Navicular: boat-shaped = cymbiform.

Neanic: referring to the pupal stage.

Nearctic: temperate and arctic North America, including Greenland.

Nebula: a cloud: a vague, indefined, dusky shading.

Nebulous -ose: cloudy: without definite form or outline.

Neck: the slender connecting structure between head and thorax of such insects as have the head free: any contraction of the head at its juncture with the thorax.

Necrophagous: living in or on carrion.

Nectaries: honey-tubes, cornicles, siphuncles; q.v.

Nematid: thread-like.

Nematocera: = nemocera; q. A.

Nematocerous: with long, thread-like antenna.

Nemocera: Diptera with long, at least six-jointed antennae.

Nemoglossata: bees with a thread-like tongue.

Nemoricolous: living in open, sunny woods.

Neogeic: belonging to the Western Hemisphere or New World: see gerontogeic.

Neolepidoptera: all haustellate Lepidoptera, except the generalized Micropterygidae; mandibles not functionally present; pupa incomplete or obtect: see paleolepidoptera and protolepidoptera.

Neoteinic: applied to complemental females in Termites because, though reproductive, they retain some juvenile characters.

Neotropical: that part of the earth's surface embraced in the greater part of Mexico, West Indies and South America.

Neotype: a specimen identified with a species already described, and selected as a standard of reference where the original type or co-types are lost or destroyed.

Nephridia: tubular structures functioning as kidneys in Annelids, Mollusks, etc. and incorrectly used as = malpighian tubules; q.v.

Nepionic: that stage of development immediately succeeding the embryonic; proposed as a substitute for larval.

Nerinaeum: a ventral thoracic sclerite between the metasternum and posterior coxa in some Coleoptera.

Nerve: a thread-like structure, composed of delicate filaments whose function it is to transmit sensations or stimuli to or from a ganglion or from or to any part of the body or its appendages.

Nerves: sometimes used to = veins, in wing structures.

Nervi: belonging or referring to the nerves.

Nervulation: arrangement of the nerves: specifically applied to the arrangement of the chitinous framework of wings and thus= venation; q.v. Nervules or Nervures: the rod or vein-like structures supporting the membranes of wings and = veins and veinlets; q.v.

Nervuration: = nervulation and venation: q.v.

Neural canal: an incomplete tunnel on the floor of meso- and metathorax, formed by fusion of apodemes, serving for the reception and protection of the ventral nerve cord and for the attachment of muscles.

Neural groove: is that furrow in the primitive layer of the embryo in which the nerve cord is formed.

Neuration: = venation; q.v.

Neurilemma: the external sheath of a nerve fibre.

Neuroblast: the large cell in the early embryo, from which the nervous system develops.

Neuromere: that part of a body segment pertaining to the nervous system.

Neuroptera: nerve-winged: an ordinal term applied to insects with four net-veined wings; mouth mandibulate: head free: thorax loosely agglutinated; metamorphosis complete: in its older use, the term applied to all net-veined insects irrespective of metamorphosis or thoracic structure.

Neuropteroidea: like the Neuroptera in the wide sense; applied to those living insects included by Linnaeus in his Neuroptera; also to those extinct forms which have a general resemblance to them.

Neurospongium: a granular matrix in the periopticon of the insect eye.

Neuter: the term applied to workers or undeveloped females in some Hymenoptera: indicated by * or *, an imperfect form of Venus sign.{Scanner's comment: I have no characters to represent the symbols. One is like the normal female (Venus) sign, but with no cross stroke on the downward stroke. The other is the symbol for Mercury or of Hermaphroditus, like a Venus sign crowned with crescent horns.}

Nidificate: to nest: applied when eggs are placed in a prepared receptaculum.

Niger: black.

Nigricans: black, tinged with gray.

Nits: the eggs of sucking lice; specifically when attached to a hair: in general, though rarely, applied in the singular to an egg.

Nitidus: shining: applied to a highly polished, smooth surface.

Niveous -eus: snowy white.

Nocturnal: species that fly or are active at night.

Nodal furrow: in Odonata; a transverse suture, beginning at a point in costal margin corresponding to the nodus, and extending toward inner margin.

Nodal sector: in Odonata; = media 2 (Comst.): arises from upper sector of arculus near nodus and extends to outer margin.

Node: a knot or knob: in the plural refers to the small segment or segment between thorax and main portion of abdomen in ants.

Nodiform: in the form of a knot or knob.

Nodicorn: with antennae that have the apex of each joint swollen.

Nodose -us: knotted or with knots; a body with one or more knotted parts a sculpture with almost isolated knots.

Nodule: a little knot, lump or node.

Nodulose -us -ate: with small nodes or nodules: a surface sculpture of knots or links, connected by an undulating line.

Nodus: in Odonata; a stout, oblique, short vein at the place where the anterior margin of the wings is sometimes drawn in.

Nopalry: a plantation of cacti for raising cochineal insects.

Normal: of the usual form or type: not out of the ordinary.

Notate: marked by spots: with a series of depressed marks as a sculpture.

Notched: indented, cut or nicked; usually a margin.

Notocephalon: in some aquatic Hemiptera, that part of the head which is apparent from a dorsal aspect.

Notodont: with toothed backs: applied to a series of moths whose larvae are more or less conspicuously humped on dorsal surface.

Notopleural suture: = dorso-pleural suture; q.v.

Nototheca: that part of the pupa covering upper surface of abdomen.

Notum: the dorsal or upper part of a segment: = tergum.

Nucha: the upper surface of the neck connecting head and thorax.

Nucleate: with, or having a nucleus.

Nucleolus: the small portion of matter in the nucleus most readily affected by staining fluids.

Nucleus: a well-defined, differentiated, round or oval body imbedded in the cell contents.

Nude -us: naked: a surface devoid of hair, scales or other vestiture.

Nuditas: = nudity.

Nudity: the state of being naked or bare of vestiture.

Nurses: worker ants or worker bees which care for the eggs, larvae and pupae, but do not forage, the latter function being taken up later, when nursing is given up.

Nutant: nodding; the tip bent toward the horizon.

Nutritive chamber: an enlarged section of ovarian tube, filled with granular nutritive material used in developing the egg cells.

Nymph: the larval stage of insects with incomplete metamorphosis: applies also to their pupal stage, and sometimes used as = pupa.

Nympha inclusa: = coarctate pupa; q.v.

Nymphipara: applied to insects that bear living young in an advanced stage of development: see also pupipara.

O

Ob-: as a prefix, means inversely.

Obconic: conic, with the apex pointing downward.

Obcordate: inversely heart-shaped, with the point applied to the base of another object or part.

Obese -us: unnaturally distended: usually applied to the abdomen.

Oblate: flattened; applied to a spheroid of which the diameter is shortened at two opposite ends.

Oblique: any direction between perpendicular and horizontal.

Oblique vein: in Odonata; an apparent cross-vein situated between M2 and Rs, distal to the level of the nodus and inclined obliquely, from its front end, backward and outward; in reality the basal part of Rs.

Obliterate: nearly washed out; indistinct.

Oblong: longer than broad.

Obovate: inversely egg-shaped; the narrow end downward.

Obpyriform: inversely pearshaped.

Obscure: not readily seen: not well defined.

Obsite-us: a surface covered with equal scales or other bodies.

Obsolete: nearly or entirely lost: inconspicuous.

Obtect: wrapped in a hard covering.

Obtected: applied to pupae when they are covered with a chitinous case which confines and conceals all appendages, though their outlines may be marked on the surface: see free, and coarctate.

Obtuse: not pointed: an angle greater than a right angle: opposed to acute. Obtuse-angulate: two markings or margins meeting so as to form an obtuse angle.

Obtusilingues: short-tongued bees with the tip obtuse or bifid: see acutilingues.

Occipital foramen: the opening in the occiput, opposed to a similar opening in the prothorax: = foramen magnum.

Occipital margin: in Mallophaga, the posterior margin of the head.

Occipito-orbital bristles: in Diptera; situated on posterior orbit of eye.

Occiput: that part of the head behind the vertex: in Diptera, the whole posterior surface of the head: in bees, the space between the vertex and the neck.

Occlusor: applied to muscles which close an opening; e.g. spiracles.