Riolus is a genus of beetles belonging to the family Elmidae.[1]
The species of this genus are found in Europe.[1]
Species:[1]
Riolus is a genus of beetles belonging to the family Elmidae.
The species of this genus are found in Europe.
Species:
Riolus cupreus (Müller, 1806) Riolus fontinalis Jäch, 1984