Three Species of Histerid Beetles (Coleoptera: Histeridae) New to Korea

Until now, 53 species belonging to 22 genera of 6 subfamily of family Histeridae have been recorded in Korea. As a result of this study, we newly add two subfamily, three genera, and three species, Niponius osorioceps Lewis, 1885, Plegaderus (Plegaderus) marseuli Reitter, 1877, and Trypeticus fagi (Lewis, 1884), to Korea along with a brief description and illustration of the diagnostic characters.