Descriptions of a new species and a new genus, Kiransus, and five new species of Hydrochus (Coleoptera, Hydrophilidae). Zoological Studies 33(2): 160-164. One new genus, Kiransus from Africa and five new Hydrochus species are described (Coleoptera, Hydrophilidae, Hydrochinae). They are: Kiransus aschnaae from Ethiopia and Zaire (Congo) Hydrochus rishwani, H. sewnathi, H. boedhani, H. flexibilis from Zaire and H. inornatus from Java.