Explanation of Terms Used in Entomology | Page 5

=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 o?theca, 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