Genus Hydrochus Leach, 1817

Amrishius Makhan, 1998: 143 (Type species: Hydrochus lacustris Nietner, 1856).

Aschius Makhan, 2004: 12 (Type species: Hydrochus squamifer LeConte, 1855).

Deepakius Makhan, 1998: 141 (Type species: Deepakius amrishi Makhan, 1998).

Kiransus Makhan, 1994: 160 (Type species: Kiransus aschnaae Makhan, 1994).

Rishihydroius Makhan, 2001a: 84 (Type species: Hydrochus megaphallus Berge Henegouwen, 1988).

Rishwanius Makhan, 1998: 144 (Type species: Hydrochus soesilaae Makhan, 1994 = Hydrochus richteri Bruch, 1915). Satishius Makhan, 2004: 11 (Type species: Satishius tishi Makhan, 2004).

Soesilius Makhan, 2001b: 390 (Type species: Hydrochus dewnaraini Makhan, 1992).