I suspect the stinging flying ants are a variety of fire ants. The red ones we've got are imported. Yours may or may not be local. Your local university extension office probably has some kind of recommended way of killing them. It's a big deal down here, Texas A&M actually has this;

http://fireant.tamu.edu/

Look for specific instructions on when to put down the broadcast baits and you'll probably do as well on your own as an exterminator.

As far as the wormies I've got no idea. Do you use polyquat in your pool? I've noticed that some bugs seem to die faster since I added it. I figure it's because the polyquat acts like a surfacant and "drowns" them the way watered down dish soap kills bees.