On the taxonomy of water mites (Acari: Hydrachnidia) described from the Palaearctic, part 2: Hydryphantoidea and Lebertioidea Author Sabatino, Antonio Di Author Gerecke, Reinhard Author Gledhill, Terence Author Smit, Harry text Zootaxa 2009 2266 1 34 journal article 10.5281/zenodo.190843 cb229040-f235-462d-b23b-55e3870709a9 1175-5326 190843 Hydryphantes (s.str.) peroviensis Udalzow, 1907 Species incerta Discussion: The description of this species is not sufficient for a clear idea of its diagnostic features ( Sokolow 1940 ). In his attempt at a redescription, Biesiadka (1972) recognized a similarity to H. planus , a species that was collected on the same occasion and at the same site, but did not mention clearcut diagnostic differences between these two taxa. As the holotype of H. peroviensis is lost, a redescription and interpretation of its characteristics is impossible and it must be regarded as species incerta .