Pterochthonius Berlese, 1913
Pterochthonius Berlese, 1913, p. 104.
Berlese created Pterochthonius as a subgenus of Cosmochthonius, but the resemblance of the two is superficial and holds good in the number of dorsal "coupures" only. As mentioned above, Pterochthonius must be regarded as an isolated genus. P. angelus is the type and single representative of it.