I'm pretty sure this is a female Carpenter Bee, which are exactly the ones you want to get rid of if your home and structures are suffering from damage. (feel free to roast me on this, yes I know they pollinate big time, however, I've spent thousands replacing 2nd story trim on my home and the buggers keep on destroying wrecking havoc)
So looks like she got in past the guard, then when leaving the honey bee (Italian) guards let her have it. Note, her rear end is super shiny with almost no hair at all.
Anyway, I thought the picture was pretty cool, hence the share.