Colymbothetidae is an extinct family of beetles in the suborder Adephaga.Tree of Life Web Project. 1995. Liadytidae. Liadytes. Version 1 January 1995 (temporary). .01.01 in The Tree of Life Web Project, Colymbothethis is known from larvae from the Upper Triassic of Kazakhstan. They probably belong to the Dytiscoidea.
References
ru:Parahygrobiidae