Genus Nipponobythus Jeannel, 1958

After a revision of the genus (LÖBL 1965) 12 species were known, seven from China and five from Japan. Later NOMURA & LEE (1992, 1993) added two more species from South Korea.At present Nipponobythus is formally placed in the tribe Iniocyphini . Based on the shared presence of a smooth depression on the gena, KURBATOV et al. (2007: 592) implicitly suggested a close relationship of the group, together with a number of related genera, to the tribe Proterini . Members are usually collected from leaf litter samples, and two Japanese species have been known to inhabit caves.