I think so, but they're also possibly called Raspberry ants after the exterminator guy who "discovered" them. What ever they are, they just showed up this spring. DH sits on the bench out front and sprinkles Boric acid powder on their trails. Doesn't do much. I mixed up some jam and boric acid and dabbed it on the deck posts. We watched them carry it up to the roof. We don't have them upstairs on the roof anymore - that we know of!