Tiger Swallowtail (Papilio glaucus)
We have a lot of tiger swallowtails (Papilio glaucus) in our yard. The particularly like the butterfly bush (Buddleia) but we see them on other flowers, as well. They are often quite ragged, with torn wings and sometimes with less than half remaining. Nevertheless, they seem to get around alright. Most of them are the standard yellow striped with black but we have a significant number of the dark form, which is restricted to females of the species. This is a pretty nice one, with her wings mostly intact. As you can see, she is on a tall verbena (Verbena bonariensis).