Explanation of Terms Used in Entomology Part 36

Grege: raw silk, including the gummy outer layer, as spun by a caterpillar.

Gres: 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 cla.s.sification used indefinitely for a series of allied species, genera or larger a.s.semblages.

Grouped glands: see circ.u.mgenital 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 s.e.x 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 alb.u.minoid 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.