I don’t think I’ve ever seen anything like that here. I also use Ortho fire ant powder in the yard. Kills them in less than one hour, but stinks like heck. We’ve had hardly any wood ants the past two years.
I have seen a large blank ant with a large pointed stinger in Alabama, and here in Piney Woods region of Texas. That stinger means business, but it doesn’t leave the large, longlasting red whelps that fire ants do. It stings and gets better in a little while. It may or may not be what you have.