Mid-Day Snack

Does anyone know the variety of butterflies that were snacking on my Phlox paniculata, "Nora Leigh"?

I love that Phlox! It's going on my wish list for next year.
The butterflies are Tiger Swallowtails.

Thanks for the id, Paintedlady. I wasn't sure of the butterfly variety, but I knew that all the very knowledgeable gardeners at DG would!!!