Hydrachnidia Krantz, 1978 - water mites Superfamily Lebertioidea Thor, 1900 Family Anisitsiellidae Koenike, 1910 Subfamily Nilotoniinae Viets, 1929 Genus Nilotonia Thor, 1905 Subgenus Nilotonia (Guanacastonia) Goldschmidt, 2004