Hyphydrus dongba sp. n. from Yiinnan and taxonomical and distributional notes on the genus Hyphydrus (Coleoptera: Dytiscidae) in China

Abstrakt: Notes on the Chinese species of the genus Hyphydrus liliger, 1802 are provided in this paper. Hyphydrus dongba sp. n., belonging to H. signatus species group (sensu Biström 1982), is described from Yiinnan (southern China) and compared with H. sumatrae Régimbart, 1880. Important diagnostic morphological characters are illustrated. Hyphydrus sumatrae Régimbart, 1880 and H. birmanicus Régimbart, 1888 are reliably recorded from China for the first time. Hyphydrus lyratus lyratus Swartz, 1808 is newly recorded from Yiinnan. Bionomics and distribution of H. excojfieri Régimbart, 1899, H. orientalis Clark, 1863 and H. pulchellus Clark, 1863 is briefly discussed. Ten species of Hyphydrus are presently reliably known from China.

Klíčová slova: Taxonomy, faunistics, new species, Coleoptera, Dytiscidae, Hyphydrus, China