Pacuvius Duskywing
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Lepidoptera
- family: Hesperiidae
- genus: Erynnis
- species: Erynnis pacuvius
Idyllwild- Idyllwild-Pine Cove
- Mammoth Lakes
- Norwalk
- Saratoga
- Tahoma
California- Santa Fe
New Mexico- Ogden
Utah- Brewster
Washington
United States