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.