Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 1427504

Orange Sulphur
Colias eurytheme

Observation date: July 10, 2026
Submitted by: Cascade Colors
Specimen type: Photograph
Observation notes: None.
Status: Resident
Verified by: mikefisher
Verified date: July 11, 2026
Coordinator notes: Hard to see orange on this one but I will concur with your suggested ID... if you made it fly and it was orange then it would be certain...as it should be in the summer. Since someone else might challenge as a Clouded Sulphur, I will just ignore it as I am sure they will have read this note! Mike
Checklist region(s): United States, Colorado, Grand County