Taxon classification Animalia Coleoptera Hydraenidae

Subgenus Hydraenopsis Janssens, 1972

Hydraenopsis Janssens, 1972: 254. Type species: Hydraenopsis vietnamensis Janssens, 1972.

Diagnosis.

Transverse anterior inner gular carina absent; mesosternal intercoxal process protruding from mesosternal disc at an angle of 150°-180°; at least one of the two parameres shifted ( Jäch et al. 2000).