That's a Hexagenia Limbata spinner. Note the two tails.Found this outside my house on my way home today. It looks like a gigantic mayfly, but that is as much as I know. Any thoughts?
As you know, Hex Limbata nymphs are burrowers and line in sediment. They form the huge mayfly hatches that show up on weather radar when they emerge from the Mississippi River between Minnesota and Wisconsin.I live across the street from Magnusson park, so lake Washington would be the likely body of water for me.
Incredible pictures illuminating what I mentioned earlier. The closest I ever came to seeing something like this was when, returning from a successful day fishing the Blitzen River, I ran into a midge hatch by Malheur Lake that covered my windshield. As I was driving into a setting sun, I was for all intents and purposes driving blind. When I pulled into a gas station in Burns and the attendant came out, I had to tell him I didn't need gas, just the ability to see the road! After that, I always kept a can of windshield bug removal spray and a roll of paper shop towels in the car.As you know, Hex Limbata nymphs are burrowers and line in sediment. They form the huge mayfly hatches that show up on weather radar when they emerge from the Mississippi River between Minnesota and Wisconsin.
Snow plows are used to clear the roads.