The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
In 136 records from GBIF, adults of this species have mostly been collected during June (23%), July (21%), August (21%), May (15%), and September (14%).
In 69 records from GBIF, this species has been collected at elevations ranging from 49 to 4396 ft, with an average (median) of 2592 ft.
Current speed: Fast
Environmental tolerance: Prefers clear water