Oxus longisetus (Berlese, 1885)

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 : 20

Oxus longisetus (Berlese, 1885)

Oxus koenikei Thor, 1899 , nov. syn.

Discussion: The description by Thor (1899) is not sufficient to allow an identification of the species. Koenike (1905) gave more extensive information, based on specimens still present in the Humboldt Museum in Berlin, but in a damaged state. He compared the species with O. tenuisetis Piersig , a species with the setae on the tip of Cx-I shorter and blade-like. Lundblad (1962) considered the species possibly synonymous with O. longisetus . Indeed, the long setae at the tip of the first coxal plates of O. koenikei are similar to those of O. longisetus , and also the size falls within the range of the latter species. Therefore, we consider O. koenikei a junior synonym of O. longisetus .