I know that there are all kinds of new ones in this state the last 20 or so years, like the Argentine variety.
I don't know that the Argentine ants, specifically, bite more, but we do have new ant species, so perhaps it's a matter of which species they are?
When we were at the lake once, a bunch of tiny black ants overran the place. They definitely bit people...hard! Some got into our bags when we left, and I was bitten when we got home. Thank goodness we were able to get rid of them. Ouch!
Love All Life, Thank You For Posting! :)