a. Ent. [f. L. vesp-a wasp + -OID.] Resembling a wasp.; wasp-like; spec. of or belonging to the Vespoidea, a super-family of Hymenoptera containing the typical wasps.
1815. Kirby & Sp., Entomol., iv. (1816), I. 122. Pompilus viaticus, a vespoid insect that deposits its eggs in spiders.
1859. Mayne, Expos. Lex., s.v. Vespoides.