From seeing them all at once I know I have 3 of the golden bees, at least 2 black ones and now this new one with the white splotch on its back. Not the best photo, I know, but it was a moving target.
I had a carpenter bee ballet going on this weekend. Probably more like vying for territory, but it was fun to watch nonetheless. I had 4 or 5 in the air at once, all swirling around the stump, looking for openings.