Observation notes: Completely sunny and about 70 °F. Was found in an open part of the trail.
Verified by: mikefisher
Verified date: July 23, 2017
Coordinator notes: Your first thought of this being a Gorgone Checkerspot was correct. May is too early for the Silvery Checkerspot (Chlosyne nycteis) besides other distinct differences that are not too hard to see. A larger butterfly, the Silvery usually begins to fly in late June and early July. It is recorded from Larimer County. Young Gulch in Poudre Canyon would probably harbor the Silvery. They like shady forest habitat with good vegetation growth where a stream flows. Mike