Jeeeeeez, you would think since its the middle of winter, we would get a break from those little pest. I have done some hikes the last couple of weekends in them thar hills, and I came up with some bites. I have come to know the differance of the look ( on me ) between a skeeter bite, and those invisible pest. For me, the No-See-Um bites last longer and are more itchy. At least with a skeeter you have something to swat at! I've got one red welt just below my eye thats makin me look real cool :-) If they are biting now, just wait till spring comes along, and they really get active :-(