Heterochthonius Berlese, 1910
Heterochthonius Berlese, 1910, pp. 221, 222.
Berlese (1910) created Heterochthonius as a subgenus of Cosmochthonius; he mentioned the simple dorsal hairs and the long tarsi as differential characters. Ewing (1917, p. 125) already regarded Heterochthonius as a separate genus, which opinion was established by Grandjean (1928) in his detailed description of H. gibbus, the type species.