Review of the Korean Species of the Genus Edaphus Motschulsky (Coleoptera, Staphylinidae) with Description of Four New Species †

SIMPLE SUMMARY: Four new species, Edaphus haenamensis sp.n., E. odaesanensis sp.n., E. suyuensis sp.n., and E. ulsanensis sp.n., are described in the Korean Peninsula. Additional two species, E. koreanus and E. lederi, are redescribed, and the latter species is recorded for the first time from Korea. ABSTRACT: The cosmopolitan euaesthetine genus, Edaphus Motschulsky, 1857, with about 90 Palaearctic species, was formerly known by a single species, E. koreanus Puthz, 2011, of which 2 specimens were collected in the southern part of the Korean Peninsula. In this paper, the knowledge of the Korean Edaphus fauna is expanded to include six species, including four described here based on a rich material collected in recent years. A key to all six species of Korean Edaphus, illustration of the habitus and diagnostic characters, and a distribution map are provided.