It’s about half an inch long, has only two functional wings (unlike bees, which have four), and hovers in one spot for 60 seconds or more. We think that it’s a species of Hover Fly, but are not certain if that is correct and, if so, which Hover Fly it might be.
Any entomologists out there? By the way, what you see here is two merged images of one insect that let me walk around it while it was hovering in a beam of light in deep woods. (Brooklin, Maine)