Trechus hydropicusTrechus hydropicus is a species of ground beetle in the family Carabidae. It is found in North America.SubspeciesThese four subspecies belong to the species Trechus hydropicus:Trechus hydropicus avus Barr, 1962Trechus hydropicus beutenmuelleri Jeannel, 1931Trechus hydropicus canus Barr, 1962Trechus hydropicus hydropicus G. Horn, 1883