Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 1406031

Giant Sulphur
Colias gigantea

Observation date: July 20, 2019
Date notes: We would be very appreciative if you would reconsider original record number 1227784 that was approved as "Pink-edged Sulphur."
Submitted by: ncrosbyrd
Specimen type: Photograph
Observation notes: Andrew Warren ID it on https://www.inaturalist.org/observations/229755567 "Giant Sulphur Colias gigantea. Lacks dark ventral forewing suffusion skinneri has; VHW cell spot border way thicker than in skinneri but just right for the local gigantea. Habitat is 100% gigantea (near a willow-lined creek) and far away from skinneri habitat. PS- the gigantea in the area are not so giant- and area easily confused with skinneri and others."
Status: Resident
Verified by: J_Martineau
Verified date: July 08, 2025
Coordinator notes: None.
Checklist region(s): United States, Wyoming, Fremont County