Thopeutis forbesellus is a moth in the family Crambidae.

[1] It is found in North America, where it has been recorded in California, Illinois, Indiana, Louisiana, Maine, Maryland, Massachusetts, Minnesota, New Brunswick, Ohio, Ontario, Quebec and South Carolina.

The wingspan is about 30 mm.

Adults are on wing from April to August.

This article relating to the moth tribe Haimbachiini is a stub.