Mottled Duskywing
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Lepidoptera
- family: Hesperiidae
- genus: Erynnis
- species: Erynnis martialis
Central City- Golden
Colorado- West Haven
Connecticut- Wilmington
Delaware- Palos Park
Illinois- Baltimore
Maryland- Acton
Massachusetts- Cedar Hill
- Sullivan
- Valley Park
- Warsaw
Missouri- Colonie
- Roessleville
- West Albany
New York- Spearfish
South Dakota- Texarkana
Texas- Blacksburg
- Farmville
Virginia- Washington, D. C.
Washington, D.C.- Madison
- Shorewood Hills
Wisconsin
United States