Re-examination of the type and newly collected material of
Episthmium bursicola (Creplin, 1837) revealed the presence of a uroproct. The species is redescribed and transferred to the genus
Uroproctepisthmium as
U. bursicola n. comb.
E. proximum Travassos, 1922 is also transferred to
Uroproctepisthmium as
U. proximum n. comb. The generic diagnosis of
Uroproctepisthmium is redefined and
Episthmium is tentatively retained as a synonym of
Echinochasmus, following Odhner (1910), until a thorough revision of its constituent species is made.