Heteromorphous: the metamorphosis complete, in abrupt stages, the larva unlike the adult. Heteronomous: if two parts, compared with each other, are of different quality: differing in development or function. Heteropalpi: palpi with a different number of joints in male and female, as in some Trichoptera. Heteroptera: an ordinal term applied to that series of Hemiptera in which the anterior wings differ in texture from the posterior, and the different regions of primaries differ in texture. Heteropterous: with wings of different texture in different parts. Heterotypical: a genus, described from more than one species, these differing in structure, 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. Hind-gut: the intestinal canal from the end of chylific ventricle to the Anus, including the malpighian tubules and anal glands. Hind-head: Mallophaga; that part of head behind mandibles and antennae. Hind-intestine: = hind-gut. Hinge: of maxilla = cardo; q.v.: the point of articulation of a movable joint. Hips: the coxa; q.v. Hirsute: clothed with long, strong hair; shaggy. Hispid: bristly: sparsely set with short, stiff hair. Histoblast: the morphological unit or cell characteristic of a particular tissue. Histogenesis: the formation and development of tissue. Histolysis: the degeneration and dissolution of organic tissue. Hoary: covered with a fine, white, silvery pubescence: pruinose q.v. Holometabolous: having a complete transformation; with egg, larval, pupal and adult stages distinctly separated. Holopneustic: having many pairs of open stigmata. Holoptic: Diptera in which the eyes of male are contiguous between vertex and antennae: see dichoptic. Holosericeus: with short, dense, silky hair, giving a satiny lustre. Holotype: the unique type: = type; q.v. Homelytra: elytra of similar or equal substance. Homo: prefix = the same; similar. Homochronic heredity: inheritance at corresponding periods of life. Homochronous: changes in an organism which appear in the offspring at the same age at which they did in the parent. Homodynamous: serially homologous: homology of the metameres. Homoeochromatism: applied when over a given region many butterflies tend to vary similarly as regards color.