Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 1420550

Sheridan's Green Hairstreak
Callophrys sheridanii

Observation date: March 20, 2026
Submitted by: sgguthart
Specimen type: Photograph
Observation notes: Sunny, 70 degrees, very windy. This butterfly was seen on an Easter Daisy (Townsendia hookeri) that was growing in the gravel along the side of a road.
Status: Resident
Verified by: mikefisher
Verified date: March 22, 2026
Coordinator notes: Hi Sally...see you "survived" winter hibernation yourself. Correct ID...not really a lot of March records for Sheridan's but not the earliest...the earliest is a month earlier in February! Mike
Checklist region(s): United States, Colorado, Larimer County