The Eastern tiger swallowtail (Papilio glaucus) lives only about two weeks as an adult, and it looks as if this one has already slipped past his due date. What a sad little butterfly.
So, when nature gives you beat up lemons, you take closeups and crop to avoid the sorry blemishes.
Close up, you don't see the sorry state this butterfly is in.
Here's a song to go with the two shots above (SYTL).