What have we here?

Over at The Buzz In The Dale, Lawndale Backwards Beekeeper Dennis writes about an odd-looking visitor in his yard:
I have no idea what his real name or call name is but he looks like a moth pretending to be a bee, maybe a bumble bee. I have never seen any bumble bees around here but no one told him that.

I don't know what he is but he is kind of cool looking with those big eyes and wide stripes. He never moved at all while I was taking pictures. When I went back much later he was long gone.

Faux Bee (The Buzz In The Dale)

Who can fill us in on this?