I do not know what this ant is, I've never seen the coloration before such as this. it has orange and black patterns, a stinger, plenty of visible hairs and antennae that almost appear to be straight, which is unlike ants from what I know.
The face looks quite "anty" (small widely separated eyes), but else nothing can be made out from the photo, nor the description - not even where on this planet the fella was found. It might be a queen, which can look quite different from the workers (and the large abdomen I think points in that direction). But then guessing has to stop until a better image and a location shows up.
The ant was found in British Columbia, Kelowna. I tried to take another picture without so much zoom, let me know, otherwise I have to take it out of the ethanol that Im storing it in. Originally I thought it was a queen as well due to the size of the thorax, however upon closer inspection I couldnt find and scars where the wings were clipped off...
I should also mention something odd when I found this bug. It had a very hard time climbing any vertical surface unlike many ants Ive caught before. As well, it would hide as best it could if provoked and emitted a high pitched squeek.
Perhaps you might get some ideas or replies via this link. You know, this site is the Natural History Museum in London UK - formerly known, until someone with a tie around his neck came up with a stupid idea, as British Museum of Natural History (the BMNH!) and the users/staff here is mostly knowleagble when it comes to British or, at least, European organisms. And "we" of course don't know everything - but "we" are working on it.
You can see a list of ants of British Columbia with pictures on Antweb. See -
However, my best guess is that this isn't an ant but something related, like a velvet ant maybe. They squeak, and sting. See -