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.
2 tails locks that down more than everything else.
This probably isn't Nixe. Besides The eyes and weak basal crossveins of the forewings, the mesonotum lacks a transverse suture which also indicates Epeorus.
Sorry to disagree, guys
The mesonotum does have a transverse suture, and its shape is typical of this genus.
The fishing was great, though.