Black Swallowtail

Thanks so much. I've said if I had it to do all over I think I would have become an entomologist. You'd be the perfect mentor, lol.
I only have project Noah as an app so I can't do anything but upload photos or I would follow you on here. Are you on fb by chance?

http://en.wikipedia.org/wiki/Papilio_pol...
Usually websites show the different sexes if they are sexually dimorphic, or different among the sexes.

I'm amazed you can tell the gender. Thanks again jgorneau!

Amazing! This is the male, which is brighter, seemingly to attract females, possibly.