My camera didn't pick up the markings on him but I can see them even down to the spots on it's face & there's no doubt in my mind. The Buckeyes were all over that BF bush too. Both of them are eating it - voraciously! They sure have big appetites.
I have them sitting here on my desk so I can watch them.
The butterfly bushes I have are the sterile ones but still I dead head them just in case. If not for that I probably never would have noticed this guy. I just looked up photos of the chrysalis so I will know it when I see it.