ch 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