Observation date: June 24, 2017
Submitted by: joshuagsmith
Specimen type: Photograph
Observation notes: Feeding on a thistle.
Status: Resident
Verified by: mikefisher
Verified date: July 28, 2017
Coordinator notes: Correct ID, a newly emerged male of the most common form found in Colorado - form pusillus - with the very thin black stripes on the wings. The late summer form is darker yellow and has wider black wing borders and stripes and can be huge in size. Not found much farther north than about the Denver area where it is also not common but you should look for it during very hot, late summers in your area. Mike
