Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 1415959

Orange Sulphur
Colias eurytheme

Observation date: October 07, 2025
Submitted by: madamirie
Specimen type: Photograph
Observation notes: hot sunny day, mid 80s, dry conditions
Status: Resident
Verified by: Ken Davenport
Verified date: October 13, 2025
Coordinator notes: None.
Checklist region(s): United States, California, Alameda County

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