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.) clypeatus Thor, 1899 Species incerta Discussion: This species may be characterized by an enlarged frontal shield with very short posterior extensions and a straight posterior margin. The specimens described under this name by Sokolow (1940) and Láska (1964) obviously lie within the variability range described by Lundblad (1962) for H. planus . As the holotype of H. clypeatus is lost and the original description is incomplete, it must be considered a species incerta .