Elytron: singular of elytra; q.v.
Elytroptera: see Coleoptera.
Emandibulata: that series of insects in which there are no functional mandibles in any stage.
Emandibulate: lacking functional mandibles; e.g. butterflies and moths, and applied in any stage.
Emarginate: notched: with an obtuse, rounded or quadrate section cut from a margin.
Embolium: Heteroptera; the narrow sclerite extending along the anterior margin of the hemelytra, from base to cuneus or membrane: the lobes on each side of the prothorax: the special enlargement at the base of the primaries which fits into a cavity in which the wing is moved.
Embossed: ornamented with raised figures.
Embryo: the young animal before leaving the body of the parent or before emerging from the egg.
Embryonic: found in, or relating to the embryo; in an undeveloped state or condition.
Emmet: an ant.