Colon rectum, Family Leiodidae
This unobtrusive round fungus beetle was first described in 1933 by University of Washington entomologist Melville H. Hatch.
Hatch is also credited with naming similarly silly coleopterans such as Colon forceps, Colon monstrosum, Colon grossum, and Colon horni.
Oh, Hatch. You scoundrel, you.
Who said scientists didn’t have a sense of humor? And in the 1930s no less!