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 36 records from GBIF, adults of this genus have mostly been collected during June (67%) and July (31%).
In 128 records from GBIF, this genus has been collected at elevations ranging from -30 to 2756 ft, with an average (median) of 892 ft.