| Riolus | |
|---|---|
_(22933016754).png) | |
| Riolus | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | Pancrustacea |
| Class: | Insecta |
| Order: | Coleoptera |
| Suborder: | Polyphaga |
| Infraorder: | Elateriformia |
| Family: | Elmidae |
| Genus: | Riolus Mulsant & Rey, 1872 |
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