Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 1422736

Milbert's Tortoiseshell
Aglais milberti

Observation date: May 10, 2026
Submitted by: Cascade Colors
Specimen type: Photograph
Observation notes: The colors are a little odd from what I'm used to seeing - more auburn vs bright orange
Status: Resident
Verified by: mikefisher
Verified date: May 17, 2026
Coordinator notes: Your ID is correct...this butterfly hibernated overwinter and it is not unusual for the one yellow color band to look and be faded as this one. Brighter, prettier ones this July-August in the high mountains. Mike
Checklist region(s): United States, Colorado, Grand County