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.
In 833 records from GBIF, adults of this family have mostly been collected during June (25%), July (19%), May (18%), August (13%), September (8%), and April (6%).
In 260 records from GBIF, this family has been collected at elevations ranging from 26 to 10322 ft, with an average (median) of 2280 ft.
Shelter type: Very fine-meshed nets