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.
Time of year : Emergence in summer, egg-laying in fall
In 248 records from GBIF, adults of this genus have mostly been collected during July (23%), August (21%), June (18%), September (13%), May (12%), and October (6%).
In 139 records from GBIF, this genus has been collected at elevations ranging from 3 to 31496 ft, with an average (median) of 6289 ft.