Doros aequalis Loew  

Species elongate, robust, wasp-like, with wing darkened anteriorly; with abdomen parallel-sided, margianted at least on terga 4th and 5th and with narrow yellow maculae or fasciae on terga. Only Nearctic species of the genus Doros, with abdomen less petiolate than Palaeractic species.

D. aequalis has katepisternum with dorsal yellow macula, and the abdomen strongly convex in cross section.