While driving up to Vacaville, we saw this butterfly on the road. It was dead. however, when we got there, but it seemed to be pretty much in-tact. It was a pretty hot day out, and the butterfly was laying a little bit to the side of the road
The Pipevine Swallowtail Butterfly (Battus philenor) is a swallowtail butterfly found in North and Central America.