Hydrochus opacus Motschulsky, 1860b *

Hydrochus opacus Motschulsky, 1860b: 103; Jäch 1995: 182; Hansen 1999a: 60; Hansen 2004: 43.

Hydrochous opacus: Zaitzev 1908a: 335.

Hydrochus violaceomicans Motschulsky 1860b: 103 .

Type locality: Ind. or. (Jäch 1995).

Distribution in India: The species has thus far only been known from the type locality (Ind. or.); its distribution requires confirmation based on additional specimens.