The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
Stream photos
Time of year : May and June
In 95 records from GBIF, adults of this species have mostly been collected during June (32%), July (26%), August (21%), and May (18%).
In 16 records from GBIF, this species has been collected at elevations ranging from 480 to 3533 ft, with an average (median) of 1781 ft.