Rhithrogena hercynia
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Ephemeroptera
- family: Heptageniidae
- genus: Rhithrogena
- species: Rhithrogena hercynia
Hallenberg- Meschede
- Monschau
North Rhine-Westphalia
Germany
Rhithrogena hercynia Hallenberg Meschede Monschau