The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.
Your unidentified mayfly is interesting to me. Is is missing left wing(s), or is that only an illusion? Did it have hind wings? What would you estimate to be its size or length from front of head to end of abdomen? How many tails did it have?
It had both of its wings and no hind wings, I am just a poor photographer ;). I am short on time right now but will resize and add some more pics shortly. I will measure my rod tas well to try to get you an accurate length measurement.