________________________________ 
Species   Erynnis persius

Erynnis persius persius

(Scudder, 1863)

Persius Duskywing

NE USA

Erynnis persius borealis

(M. Cary, 1906)

Persius Duskywing

most of W Canada, possibly S
along Cascades (& W) to N CA

Erynnis persius avinoffi

(W. Holland, 1930)

Persius Duskywing

YT, Alaska

Erynnis persius fredericki

H. Freeman, 1943

Persius Duskywing

Rocky Mountain region, USA,
possibly S SASK, S ALTA