ive 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, whi