Thank you for all the replies everyone! Very much appreciated. Also, that video was nuts. I had no idea they would show up like that under a blacklight. So cool.

Guess I still have some thinking to do... I must say though that, to me at least, the difference between a lesser and butter jumps right out. At least with quality examples of the morphs, as Clear said. It took me a long time to pick out my lesser, and he's night and day from butters. No yellow in him whatsoever, and a different pattern. Same thing with the Bees. I dunno, maybe I'm just inexperienced.