I had to work Thursday, and I drive a truck for a living. As I passed through an area where there is small stream in North Eastern MD, I noticed what looked like tiny drops hitting the windshield. A lot of them! It was some type of insect. Later, after daylight, I took a close look & they appeared to be a midge. Very light greenish to pale yellow in color, most about a size 20 I think. Hard to really tell, as they were smashed against the truck hood & grill. There were some wings intact, and they didn't look like mayflies or caddis, and certainly not stoneflies. Looked similar to mosquitoes, but I'm sure they were not.
From a fly fishing perspective, I thought it was cool to see them, but not so much smashed all over my truck!