Hydrachnidia Krantz, 1978 - water mites Superfamily Hydryphantoidea Piersig, 1896 - water mites Family Hydryphantidae Piersig, 1896 Subfamily Euthyadinae Viets, 1931 Genus Trichothyas Viets, 1926 Subgenus Trichothyas (Kashmirothyas) Lundblad, 1934