I work in Madison and frequent the lakes during the boating season. I know there was a tri-athalon scheduled last weekend and they cancelled the swimming portion because of the algae. I was boating on Madison lakes on Thursday the fourth and got bit a few times myself. I've seen the bugs before and they are fairly large and ugly actually (is that scientific?). Anyway...I'm not real sure what they are but I have seen them many times in the water in this area. I don't think it's anything to be alarmed about as I stood in the lake at a sandbar and only got bit a couple times. I'm not much help but at least you know there's more out here!!!