I can never keep the Swallowtails straight!
I considered both of these to be Spicebush Swallowtails based on the large marginal hindwing spots that are basically blue or green.
You've got Papilio troilus figured out justy fine Bob. Beautiful pictures.
Thanks for the verification, Larry...but, THANK YOU MOST for returning. I have sorely missed you!
The first one with the true blue hindwing coloring is a female and the next one is a male.
They're both beautiful, Bob!