This is the last of three Bees that I filmed on this day, that were captured in Crooknecked Squash flowers, Cucurbita pepo var. torticollia. All of them are apparently males of the same species.
These are images of a Long-horned Bee, that I believe is most likely a male Pruinose Squash Bee, Peponapis pruinosa. These male Bees are fairly distinctive, with bicolored legs and a pale spot on the upper-middle of the clypeus. I also noticed a small bright line (painted) on the costa, on the base of the pterostigma, on both sides of the wings. Also, the pale hairs on most of the tergites seem to have a thin, slightly smeared or interupted feature, along much of the centerline, on the dorsal surface of the abdomen. None of that info is in the keys, so I'm also listing my notes here.
Full Size Image: Click Here
Keying info is listed on the first Bee's master image. Here is a link: ♂ Here is a link to the second guy: ♂