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 15 records from GBIF, adults of this genus have been collected during July (40%), June (40%), August (13%), and September (7%).
In 1 record from GBIF, this genus has been collected at elevation of 29016 ft.