Platyceroidini, Paulsen & Hawks, 2008

Paulsen, M. J. & Hawks, David C., 2008, Platyceroidini, a new tribe of North American stag beetles (Coleoptera: Lucanidae: Lucaninae), Insecta Mundi 2008 (58), pp. 1-2 : 1-2

Platyceroidini , new tribe

Type genus: Platyceroides Benesh 1946: 175 , here designated.

Description. Coleoptera : Scarabaeoidea: Lucanidae : Lucaninae. Length: 7.6-13.2 mm. Width: 3.2-5.8 mm. Color: Black to reddish-brown, occasionally with metallic reflections. Head: Anterior margin straight or weakly emarginate, not deeply, semi-circularly excised. Eye canthus weak but distinct (anterior margin of eye located on dorsal surface of head, per Holloway 1969). Antenna partially geniculate; antennal club composed of 3 antennomeres in both sexes. Mandibles small in both sexes, approximately 1/3 to 1/2 length of head; form not strongly sexually dimorphic, simply falcate, at most with weakly indicated tooth internally near base. Pronotum: Form broadly rounded, narrowly to broadly explanate. Elytra: Surface punctate, weakly striate. Wings: Males mostly with functional flight wings (one species with flightless males), females flightless in all species. Abdomen: Sixth ventrite rarely visible beyond apex of 5 th ventrite unless genitalia protruding. Male genitalia with internal sac permanently everted, with saclike accessory lobes not strongly sclerotized; flagellum present or absent.