Tawny Emperor butterfly

Hi, Earlier this week while looking for butterflies along the Conestoga River near the confluence with the Susquehanna River, I found several Tawny Emperor butterflies. These were seen across from the stand of Hackberry Trees that is their host. I expected to see a Hackberry butterfly more than this guy. Here are both shots, one with wings up and the other a topside view. Best to you, Denis