The genus Nipponodrasterius Kishii (Coleoptera, Elateridae, Agrypninae), a junior synonym of the genus Gamepenthes Fleutiaux (Coleoptera, Elateridae, Elaterinae), with review of the Japanese Gamepenthes species.

The genus Nipponodrasterius Kishii, 1966 was established as a member of the subfamily Conoderinae Fleutiaux, 1919 (now tribe Oophorini Gistel, 1848; subfamily Agrypninae Candèze, 1857) based on N. alpicola. The genus was suggested to be unlikely to belong to Agrypninae because it lacks diagnostic features of the Agrypninae. However, there are no taxonomic treatments for the genus or species. Here, we review the status of the genus and species by examining the holotype of N. alpicola. Consequently, the genus was found to be a junior synonym of the genus Gamepenthes Fleutiaux, 1928 and N. alpicola was found to be a junior synonym of G. pictipennis (Lewis, 1894). We review all species of Gamepenthes in Japan and provide a key to species. Kôichi Arimoto, Hisayuki Arimoto.