Largest Frit out there this morning...till S.n. apacheana floated by. Couldn't run it down through the Rabbitbush.
A Great Spangled Fritillary on Common Milkweed at Buck Hill MA.
Not particularly good photos!
on spreading dogbane
Speyeria, commonly known as greater fritillaries, is the genus of butterflies in the family Nymphalidae commonly found in North America and Asia. Delimitation versus Argynnis is problematic, and the present genus is sometimes included therein.