Diverse: unequal: differing in size or shape: of various kinds.
Diverticulum -la: an oft-shoot from a vessel or from the alimentary canal usually blind or sac-like: applied to the caecal tubes or pouches: any extensions or evaginations of the hypodermic.
Dividens (vena): Trichoptera; 1st anal (Comst.).
Dog-ear marks: in bees: small, subtriangular marks of light color, just below the antennae (Cockerell).
Dolabriform: hatchet-shaped: compressed, with a prominent dilated keel and cylindrical base.
Dolioloides: applied to obtect or coarctate pupae.
Dominant: a character more constant and conspicuous than any other: a type or series occurring in large numbers both as to genera, species and individuals and in which differentiation is yet active.
Dorsad: extending or directed toward the upper side.
Dorsal: of or belonging to the upper surface: in Diptera, that face of the laterally extended legs visible from above.
Dorsal diaphragm: the wings of the heart, or the very thin membrane upon which these muscles rest: = pericardial diaphragm, q.v.
Dorsal gland orifices: in Diaspinae, oval orifices arranged in more or less distinct rows on the surface of the pygidium, through which is discharged the material of which the dorsal scale is formed.
Dorsal line: in caterpillars, extends longitudinally on the middle of the back or dorsal.
Dorsal scale: that part of the covering scale of the Diaspinae that lies above the insect, as opposed to the ventral scale, which lies below.
Dorsal space: in slug-caterpillars is the area between the sub-dorsal ridges.
Dorsi-meson: the middle of the upper surface.
Dorso-alar region: Diptera; between the transverse suture and the scutellum on one side and the root of the wing and the dorso-central region on the other.
Dorso-central bristles: Diptera; two or four longitudinal rows on the inner part of the dorsal.
Dorso-central region: Diptera; bounded by two imaginary lines drawn from the scutellar bridges forward, and coinciding with a space free from bristles that exists on the outer side of the dorsal rows and is often occupied by a dorsal thoracic stripe.
Dorso-humeral region: Diptera; bounded by the anterior end of thorax and transverse suture on two sides and by the dorsopleural suture and dorsocentral region on the two others.