I grew up in Montclair, New Jersey. I remember when I was a kid, Sometime in the sixties, one year when the cicadas came out. There were so many of them that it became dangerous to drive because there were so many zillions of them squashed on the road that it was the equivalent of driving on an icy street.
Kinda like Love Bugs in Florida......................
Great Lakes and Midwest can have mayfly hatches so huge that snowplows have to clear slippery bridge decks.