Revision of the family Haliplidae (Insecta, Coleoptera) in Japan

The Japanese members of Haliplidae were reviewed and 13 species in two genera are recognized. A new species, Haliplus morii sp. nov. is described from Honshu; it is similar to Haliplus japonicus Sharp, 1873, but belongs to a different subgenus. Haliplus diruptus J. Balfour-Browne, 1946, syn. nov. is treated as a junior synonym of Haliplus kotoshonis Kano & Kamiya, 1931. The records of Haliplus davidi Vondel, 1991 from Japan are regarded as misidentifications of H. kotoshonis. Haliplus basinotatus latiusculus Nakane, 1985, syn. nov. is treated as a junior synonym of H. basinotatus. Haliplus angustifrons Régimbart, 1892 known from south and southeast Asia, is newly recorded from Japan.