Three Falagriini species (Coleoptera: Staphylinidae: Aleocharinae) new to Korea

Cordalia occipitalis Pace, Myrmecocephalus concinnus (Erichson), and Myrmecocephalus zhejiangensis (Pace) are identified for the first time in the Korean peninsula. The genus Cordalia Jacobs is also new record to the Korean fauna. An updated key is given for the separation of the known species of Korean Falagriini. Redescriptions and illustrations of habitus and diagnostic characters are provided to facilitate identification.