Taxonomic revision of African water beetles in the genus Ochthebius Leach (1815) subgenus Aulacochthebius Kuwert (1887) (Coleoptera: Hydraenidae) Author Perkins, Philip D. text Zootaxa 2023 2023-01-17 5228 5 501 546 journal article 10.11646/zootaxa.5228.5.1 1175-5326 7543172 88FE61B0-65C6-4E22-8E18-B34BA534302C O. (A.) continentalis Orchymont 1929 Originally described from Kenya . According to the original description this species has distinctive longitudinal grooves on the metaventral plaque (e.g., Fig. 9 ). I have examined specimens, including the male genitalia, from Kenya, Angola and South Africa , which have the plaque grooves. All of these specimens have the same shape of the aedeagus ( Fig. 9 ). This identity decision needs to be verified by examining, including the male genitalia, type specimens of O. (A.) continentalis Orchymont , which should be in the Orchymont collection at the Brussels Museum (RBINS).