Live in central Iowa region near Des Moines. Messing around on my computer as the sun went down, and I didn't get up to turn the lights on. One of these two little gals landed on the monitor screen and started running/flitting around. Grabbed a near by test tube I had acquired from a nurse relative but which was too small for my C Pennies and snatched her up. After I caught her, I noticed a second one on the monitor so I grabbed her too. Breaking news, I JUST NOW caught a third on top of my computer tower (the lights are now on). I'm guessing the ants that live in my driveway/garden and which are frequently seen wandering thru the house are having a flight tonight as it's been nice and warm/humid today. Any guesses as to what these might be?