Hello, I see this fuzzy little guy in my garden almost every other day. He likes to sit near me while I water (on edge of tomato cage or arbor, seemingly getting sun). He sits for a min or so, then takes off, and doesn't seem to mind if I am very close. I have a large vegetable and butterly garden, lots of blooms, and I've seen a few female mason bees on blooms before, I assumed this to be a male mason bee. After a little more reading, I wondered if it might instead be a robber fly (we do have a lot of other honey bees and yellow jackets here also). I would appreciate any help identifying! Respectfully, Lyndsy