We just drove through McCool Junction on July 4 on our way to the homeland in North Dakota. It was crazy...the moths/butterflies were thick along that area of US 81. I've not seen anything like that before, but I guess this is not surprising given how lush the ditches are with grass and sweet clover. We stayed in York, NE overnight, and before we took off the next day, we had to go to the car wash and clean out the radiator (in addition to the headlights which were plastered full), as it was stuffed full of moths. I opened the hood; the engine compartment is pretty well sealed up, but there were dead moths in there as well.