Peter, your fly is a hoverfly; and one of the Eristalis family. I would like to see the hind tibia but suspect it is probably Eristalis tenax.
In the UK they have the common name of Drone Fly because they mimic honey bees.
Anybody want a good laugh?
Today I went out to photograph insects but after driving 5 miles I found a thick sea fog over the scene. Undaunted, I had the flash anyway, I walked a mile until I found something which I couldn't identify by sight; so I opened my backpack and started setting up my camera gear.
Two lenses - but no camera body!
However, I will have a look and see if I can find something handy, from another day, to post.