Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 1412371

Dainty Sulphur
Nathalis iole

Observation date: August 21, 2025
Submitted by: Cascade Colors
Specimen type: Photograph
Observation notes: None.
Status: Resident
Verified by: mikefisher
Verified date: August 24, 2025
Coordinator notes: Correct ID...looks like a female. Amazing they get up into the mountains a long way...I think this is the world's smallest sulphur. Mike
Checklist region(s): United States, Colorado, Grand County