Teratothyasides (Hansvietsia), K. Viets, 1951

Gerecke, Reinhard, 2020, The early derivative water mites (Acari: Hydrachnidia, superfamilies Eylaoidea, Hydrachnoidea and Hydryphantoidea) of Madagascar, Zootaxa 4727 (1), pp. 1-77 : 60

Subgenus Hansvietsia K. Viets, 1951

Hansvietsia species are characteristic in the combination of: (1) genital field with numerous acetabula (apomorphic, as in Rhynchohansvietsia ); (2) gnathosoma not narrowed and slender, not located on a protrusible membranous tube (plesiomorphic, as in Teratothyasides s. str., Rhynchohansvietsia with a slender, protrusible gnathosoma). Thus, Hansvietsia is in a paraphyletic relationship with Rhynchohansvietsia .