Papilio glaucus (Eastern Tiger Swallowtail)
The butterfly bush (Buddleia) plants that come up like weeds throughout our yard are in full bloom and are attracting the most common of the large butterflies in our area, the Eastern Tiger Swallowtail (Papilio glaucus). This is a male, which can be distinguished from the female by the lack of blue near the trailing edge of its hindwings. Getting a good angle for a photograph is the trick, as they are generally well overhead, but this one turned out fairly well. I like the shadow of the flowers showing through his wings.