Hydryphantes

Sabatino, Antonio Di, Gerecke, Reinhard, Gledhill, Terence & Smit, Harry, 2009, On the taxonomy of water mites (Acari: Hydrachnidia) described from the Palaearctic, part 2: Hydryphantoidea and Lebertioidea, Zootaxa 2266, pp. 1-34 : 14

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 .