The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
Time of year : Early summer for most species
Preferred waters: Rivers or lakes
In 649 records from GBIF, adults of this genus have mostly been collected during June (31%), July (31%), August (18%), and May (14%).
In 253 records from GBIF, this genus has been collected at elevations ranging from -30 to 7546 ft, with an average (median) of 942 ft.
Time of day: Late afternoon and evening
Environmental tolerance: Requires cool water