Very interesting--I had not heard of that character previously, and I see what you mean, I believe. (The inner angle of the hindwing is very acute in my two photos.)

I had been basing the information on a statement in Tuskes (1), that only males of A. senatoria come to lights. Do you have any comments on that statement about life history? I'm quite prepared to believe it is incorrect--just wondering if you have any other qualifications to add.

Again, thanks for the help.

No, I'm not familiar with the idea that only male senatoria come to lights.
I just happen to notice in your photo that the hind wing of your specimen is more angular, akin to male virginiensis.
Years ago, when I lived in Garner, NC I had confirmed with help from NC State, that I had collected virginiensis, stigma, and senatoria, and that's where I became aware of the distinction in the hindwings between male stigma & senatoria. A. stigma has a more softly curved hind wing and is more ochreous.
Your photo also does look quite similar to a male peigleri, but I'm not sure how common they are there in that area, as I never came across one in my time there unless maybe I mistook it for a senatoria.
Hope I'm not stirring things up, I just happened to notice the angular hindwing on your specimen. And if it is indeed a senatoria then it's one of the best photos I've ever seen of a live male.