The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
Time of year
: June and July
In 9 records from GBIF, adults of this species have been collected during July (44%), June (44%), and September (11%).
In 2 records from GBIF, this species has been collected at elevations of 2303 and 9974 ft.