Hybochaetodus Arrow, 1909

Type species: Hybochaetodus obscurus Arrow, 1909: 500 .

Diagnosis. This genus is distinguished from other genera of Hybosoridae in the New World by the following combination of characters: Mandibles protruding beyond labrum; pronotum with basiomedial fovea or concave area at base in middle, lacking dorsal carinae (Figs. 1, 2, 5–8); elytra convex or flat; metasternum shortest at middle; and meso­ and metatibiae lacking transverse carinae. All known species of Hybochaetodus have their hind wings completely reduced and are flightless.