Gyrinus affinis
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Coleoptera
- family: Gyrinidae
- genus: Gyrinus
- species: Gyrinus affinis
Creston- Kamloops
- Parksville
- Quesnel
- Salmon Arm
- Vancouver
- Vernon
- Victoria
- Williams Lake
British Columbia- Tobermory
Ontario
Canada
Mendota- Murphys
- South Lake Tahoe
California- Evanston
Illinois
United States