Correction of existing generic and species concepts in Platyceroidini (Coleoptera: Lucanidae: Lucaninae) and the description of four new species of Platyceroides Benesh Author Paulsen, M. J. text Zootaxa 2017 4269 3 346 378 journal article 32994 10.11646/zootaxa.4269.3.2 cb56b0e3-1b88-4a89-b478-186e2b30721f 1175-5326 582450 0D7EC140-F88A-49BB-BB62-D2AC8EC6FC1D Subgenus Platyceropsis Benesh, 1946 , new status Type species. Platycerus keeni Casey, 1895 , by original designation. Subgeneric description. Differing from the other subgenera in the following characters: Head: Anterior margin distinctly emarginate (Fig. 19), rarely less emarginate. Genae usually produced laterally past eyes (greatest width of head is across genae). Wings: Males with functional wings or wings absent. Abdomen: Male genitalia ( Figs. 13 B, 14C) with internal sac (flagellum) short, not reaching beyond parameres in repose, flagellum with strongly sclerotized, median, hooked process and weakly sclerotized, lateral, wing-like processes. Parameres simple, not emarginate in lateral view ( Fig. 1 A).