At the risk of overdoing one subject, here’s another picture of a tiger swallowtail (Papilio glaucus). As you can see, this looks a bit different to the others I’ve posted lately. There is a dark phase which occurs in females through much of its range.
This little lady was playing hard to get, moving to the top of the buddleia (butterfly bush) and staying on the far side as I circled trying to get a good look at her. This is the best I could do, and it isn’t bad, anyway.