Elmids
Guides
Hexacylloepus ferrugineus
Rusty Riffle Beetle, rusty elmid
Hexacylloepus ferrugineus, commonly known as the rusty riffle beetle or rusty elmid, is a species of riffle beetle in the family Elmidae. It is found in Central America and North America. The species was first described by Horn in 1870. Riffle beetles in this family are typically associated with aquatic habitats, particularly flowing water environments.