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).

Published as part of Gupta, Devanshu, Sonali, Shipra, Ghosh, Sujit Kumar, Das, Priyanka, Jaiswal, Deepa & Chandra, Kailash, 2024, A Catalogue of Indian Hydrophiloidea (Insecta: Coleoptera), pp. 1-92 in Zootaxa 5546 (1) on pages 10-11, DOI: 10.11646/zootaxa.5546.1.1, http://zenodo.org/record/14387438