I strongly suggest you downsize and probably crop the photo, or many people won't bother looking at it (most folks will balk at anything over 5Mb). Technically, it would be possible to make it at least 30 times smaller and still show good detail. (Also, there's a chance some folks might have trouble with tif, though I know it has technical advantages.)
I'm no expert, but I can see it is a fly (diptera), judging by antennae, and I think I can recognize a haltere.
Oh, OK - if I had to guess, it would be Volucella inanis