Six new species and males of some species of Japanese Culicoides (Diptera: Ceratopogonidae).

Culicoides (Avaritia) pastus sp.n., C.(A.) wadai sp.n., C. (Culicoides) cylindratus sp. n., C. (Oecacta) insularis sp.n., C. (O.) nunomemoguri sp.n. and C. (Trithecoides) longicercus sp.n. are described as new species. Hitherto unknown males of C. (C.) aterinervis, Tokunaga, C. (Beltanmyia) japonicus Arnaud, C. (O.) wakuensis McDonald, Bolinguit et Lu and C. (T.) matsuzawai Tokunaga are described and the male of C. (A.) jacobsoni Macfie is redescribed.