CylloepusCylloepus is a genus of riffle beetles in the family Elmidae. There are about six described species in Cylloepus.SpeciesCylloepus abnormis Cylloepus araneolus Cylloepus danforthi Musgrave, 1935Cylloepus haitianus Cylloepus lahottensis Cylloepus parkeri Sanderson, 1953