Yosemite waterfalls - bryanlallen
Topside of the same butterfly. Species is Chalcedon Checkerspot (Euphydryas chalcedona) based on this and the previous photo. Beautiful.

Topside of the same butterfly. Species is Chalcedon Checkerspot (Euphydryas chalcedona) based on this and the previous photo. Beautiful.

Chalcedon CheckerspotEuphydryas chalcedona