Zebra Swallowtail (Eurytides marcellus)

May 26^th, 2016. While I was looking for wildflowers at the Broad River Wildlife Management Area, I encountered this… 

Zebra Swallowtail (Eurytides marcellus) feeding on Butterfly Milkweed (Asclepias tuberosa) flowers. It was in perpetual motion, settling momentarily on one flower and then flying to another. Occasionally, it would fly away as if in search for another plant, only to return to this plant again. I was lucky enough to ‘catch’ it for a rare instant when it stopped with its wings fully extended.

Reference: 

Butterflies and Moths of North America: Eurytides marcellus