How do I know it’s a Pipevine Swallowtail? My 2021 National Wildlife Federation calendar titled “Treasures of Wildlife” told me.
It also told me the photographer’s name is Robert Day from Daybreak Imagery.
I respect their copyright despite the fact my use is not for profit, so I’m not going to show you the original photo. Instead, I encourage you to visit their online gallery. Richard and Sue Day are talented photographers so you’ll enjoy the visit. You may want to set a timer before you click through so you don’t lose too much time browsing.
Here’s the mixed media (iridescent watercolor, ink, and watercolor pencil) piece I made from it:


I think I need to do a little reading about this butterfly. The University of Florida has a “Featured Creatures” page about them. Apparently that luminescent blue is an aid in mating.
Time to go to work. Have a great Tuesday!