Part 69

Homophonous: words differently written but indistinguishable in sound, applied to different conceptions.

Homoplastic: implies that organs, similar in situation and purpose, are not structurally the same, or have not the same origin.

Homoptera: an ordinal term applied to those Hemiptera in which the primaries are of the same consistence throughout.

Homotenous: retaining the primitive form: applied to insects without or with an incomplete metamorphosis.

Homotype: is a specimen named by another than the author after comparison with the type.

Honey dew: a sweetish excretion produced by certain insects, notably Aphids and Coccids, and exuding from the surface of some galls.

Honey tubes: small tubes or tubercles on the abdomen of plant lice and other insects through which a sweetish liquid or honey dew is excreted siphonets; siphuncles; cornicles.

Hood: of the maxilla is the galena; q.v.: in Tingitidae the elevated portion of the prothorax, often covering the head.

Hooked hairs: = gathering hairs; q.v.

Horismology: see orismology.

Horizontal: said of wings when held parallel to the horizon.

Horn: a pointed chitinous process of the head: in the plural form applied to the antennae; q.v.

Host: the individual infested by or upon which a parasite grows: also applied to the maker of a cell or other structure in which guest flies or other insects take up their abode.

Hudsonian zone: is that part of the boreal region comprising the northern part of the great transcontinental coniferous forests. In the eastern United States restricted to the cold summits of the highest mountains, from northern New England to western North Carolina: in the west it covers the higher slopes of the Rocky and Sierra-Cascade systems.

Humeral: relating to the shoulder or humerus.

Humeral angle: in Lepidoptera, that angle of the wings at the base of costa, near the point of attachment to the body: in Coleopteran, the outer anterior angle of elytra: in Orthoptera, the obtusely rounded angle formed by the deflection of the sides of the pronotum from the dorsal.

Humeral bristles: in Diptera, are situated on the humeral callus.

Humeral callus: in Diptera, is a rounded callus forming the anterior superior angle of the mesothorax.

Humeral carina: in Coleoptera, an elevated ridge or keel on the outer anterior angle of elytra.

Humeral cross-vein: (Comst.); extends between the costa and subcosta close to base.

Humeralis: Coleopteran; when the elytral has an angulated projecting margin at base.

Humeral stripe: in Odonata, covers the humeral suture.

Humeral suture: in Odonata, runs from just in front the base of the fore-wing to the edge of the median coxa, separating the mesepisternum from the mesepimeron.

Humeral veins: in Lepidoptera, secondary veins on posterior wings of Lasiocampids, developed to strengthen the humeral angle.

Humerus: the shoulder: in Coleopteran; the basal exterior angle of elytra: in Diptera, the anterior superior angles of the mesothorax: in Orthoptera, the femur of the fore-leg: in Hymenoptera, applied to the sub-costal vein in some groups.

Humid: applied to regions in which the normal rainfall is sufficient to produce ordinary farm crops without irrigation: see arid.

Hyacinthine: the purple blue of the hyacinth [between mauve and lilac].

Hyaline: vitreous: transparent or partially so.