Hydrachnidia Krantz, 1978 - water mites Superfamily Lebertioidea Thor, 1900 Family Limnesiidae Thor, 1900 Subfamily Protolimnesiinae Viets, 1940 Genus Protolimnesia Lundblad, 1927 1 Subgenus Protolimnesia (Protolimnesia) Lundblad, 1927 2 Subgenus Protolimnesia (Protolimnesella) Cook, 1980 3 Subgenus Protolimnesia (Voldroguella) Cook, 1981