I'm wondering, too. I think I may have placed out of habit (adding image to previous post, then unlinking). P. badia is more common and likely choice but this specimen does look more like my only confirmed P. rileyi and seems to conform to BP's comment, "In P. rileyi the hindwing has a median white streak with a dorsolateral row of brown scales. In P. badia the median white streak is unicolorous."

I am presently researching these and will be updating guide pages, so we can sort them out.
Z