A B

I believe this is a fly which mimics a bee. Perhaps someone could correct me if I am wrong : ). This insect was happily buzzing at Erlton/Roxborough Natural Area this morning. Here, it has landed on a closed Goat's-beard flower.

Later: thanks for the correction, Doug! I heard G say something about "something" being a fly not a bee. Guess I thought he meant THIS insect : )