The apple tree is blooming, and with it come a lot of insects. I lost both of my beehives over the winter, and have not seen any honeybees. I have seen some other bees, however, and a number of other insects, including this syrphid fly.
The Kaufman Field Guide to Insects of North America shows a fly that looks like this and identifies it as Syrphus ribesii. Bugguide.net apparently does not list that as a species.
Fly taxonomy gets complicated.