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.
Stream photos
In 5 records from GBIF, adults of this species have been collected during April (40%), October (20%), December (20%), and February (20%).
In 1 record from GBIF, this species has been collected at elevation of 220 ft.