Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 1402416

Pacuvius Duskywing
Erynnis pacuvius

Observation date: June 01, 2025
Submitted by: ezeemonee
Specimen type: Photograph
Observation notes: Near Crawford Gulch Road. Partly cloudy day in the 70’s F. Puddling with many other butterflies.
Status: Resident
Verified by: mikefisher
Verified date: June 08, 2025
Coordinator notes: Obvious white fringe on the hindwings is a give-away as the Pacuvius Duskywing...also typically larger than Persius...every once in a while you get a Pacuvius with a mostly dark fringe but the well pattern forewings that reflect a purplish-tone when newly emerged. Mike
Checklist region(s): United States, Colorado, Jefferson County