A supplement to the grassfly fauna of Japan (Diptera, Chloropidae)

Two new grassfly species, Gampsocera diversicolor closely related to G. tenuisinuosa Kanmiya, 1983 and Conioscinella subdivitis closely related to C. divitis Nartshuk, 1971, are described from Japan. Keys for the new species are given. Oscinisoma ussuriense Nartshuk, 1973, known in Primorskii Territory of Russia and Korea, was found in Japan (Honshu Island) for the first time. The genus Oscinisoma Lioy, 1864 was also first recorded in Japan.