Diurnal: such insects as are active or habitually fly by day only.
Divaricable: able to spread apart or divaricate.
Divaricate: straddling or spreading apart: when the wings are lapped at base and diverge behind: tarsal claws when arising at opposite sides of the joint and separating widely.
Divergent: spreading out from a common base; in Coleoptera, tarsal claws are divergent when they spread out only a little; divaricate when they separate widely.
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.