My contribution to Eileeninmd's Saturday's Critters #79 and Andy's Weekend Butterfly #02.
Here is an Eastern Tailed-Blue butterfly. The tails are small, but you can see them if you click for the larger pic.
This is an Orange Sulphur, Colias eurytheme:
I think this is the American Bumble Bee, Bombus pennsylvanicus. But there are a couple of other possibilities. Female bumble bees have pollen baskets like this one, while carpenter bees do not. (There is plenty more information about bumble bees at that link!)
Mouse over pics for captions, and click them for larger versions.