==List of species==* "Hydrophilus aculeatus" (Solier, 1834)* "Hydrophilus acuminatus" Motschulsky, 1853* "Hydrophilus albipes" Castelnau, 1840* "Hydrophilus aterrimus" (Eschscholtz, 1822)* "Hydrophilus atricapillus" Duftschmid, 1805* "Hydrophilus bilineatus"* "Hydrophilus brevispina" Fairmaire, 1879* "Hydrophilus caschmirensis" Redtenbacher, 1844* "Hydrophilus ensifer" Brullé, 1837* "Hydrophilus foveolatus" (Régimbart, 1901)* "Hydrophilus guarani" (Bachmann, 1966)* "Hydrophilus hastatus" (Herbst, 1779)* "Hydrophilus indicus" (Bedel, 1891)* "Hydrophilus infrequens" Watts, 1988* "Hydrophilus latipalpus" Castelnau, 1840* "Hydrophilus macronyx" (Régimbart, 1901)* "Hydrophilus ovatus" Gemminger and Harold 1868* "Hydrophilus palpalis" Brullé, 1838* "Hydrophilus pedipalpu"s (Bedel, 1891)* "Hydrophilus piceus" (Linnaeus, 1758)- Great Silver Water Beetle* "Hydrophilus picicornis" Chevrolat, 1863* "Hydrophilus pistaceus" Laporte de Castelnau, 1840* "Hydrophilus rufus" Scopoli, 1763* "Hydrophilus smaragdinus" Brullé, 1837* "Hydrophilus triangularis" Say- giant water scavenger beetle* "Hydrophilus tricolor" Herbst, 1784* "Hydrophilus wattsi" Hansen, 1999==References==* Biolib
* "Hydrophilus aculeatus" (Solier, 1834)* "Hydrophilus acuminatus" Motschulsky, 1853* "Hydrophilus albipes" Castelnau, 1840* "Hydrophilus aterrimus" (Eschscholtz, 1822)* "Hydrophilus atricapillus" Duftschmid, 1805* "Hydrophilus bilineatus"* "Hydrophilus brevispina" Fairmaire, 1879* "Hydrophilus caschmirensis" Redtenbacher, 1844* "Hydrophilus ensifer" Brullé, 1837* "Hydrophilus foveolatus" (Régimbart, 1901)* "Hydrophilus guarani" (Bachmann, 1966)* "Hydrophilus hastatus" (Herbst, 1779)* "Hydrophilus indicus" (Bedel, 1891)* "Hydrophilus infrequens" Watts, 1988* "Hydrophilus latipalpus" Castelnau, 1840* "Hydrophilus macronyx" (Régimbart, 1901)* "Hydrophilus ovatus" Gemminger and Harold 1868* "Hydrophilus pedipalpu"s (Bedel, 1891)* "Hydrophilus piceus" (Linnaeus, 1758)* "Hydrophilus picicornis" Chevrolat, 1863* "Hydrophilus pistaceus" Laporte de Castelnau, 1840* "Hydrophilus rufus" Scopoli, 1763* "Hydrophilus smaragdinus" Brullé, 1837* "Hydrophilus triangularis" Say* "Hydrophilus tricolor" Herbst, 1784* "Hydrophilus wattsi" Hansen, 1999