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 Regimbart, 1892 known from south and southeast Asia, is newly recorded from Japan.

Automated summary

The Japanese members of Haliplidae were reviewed, and 13 species belonging to two genera were identified. A newly discovered species, Haliplus morii sp. nov., was described from Honshu. It bears a resemblance to Haliplus japonicus Sharp, 1873 but is classified under a different subgenus. Haliplus diruptus J. Balfour-Browne, 1946 was determined to be a junior synonym of Haliplus kotoshonis Kano & Kamiya, 1931. The reported records of Haliplus davidi Vondel, 1991 from Japan were considered as misidentifications of H. kotoshonis. Additionally, Haliplus angustifrons Regimbart, 1892, previously known from southern and southeastern Asia, was newly recorded in Japan.