Here's a picture I took from the window on a flight from Elmira, NY to Chicago on 2-16-15. This is Keuka Lake, heart of the Finger Lakes, which doesn't usually freeze 100%. I've lived on or near Keuka for 42 years. I remember it freezing only a handful of times. It's been cold here!
Found this walking around on my back deck. It's about 1/4" wide X 3/8" long.
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I'm told it's harmless to humans but I would not want to wake up seeing it on the wall of my bedroom. What really surprised me was the quality of the picture even after cropping.