The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
Stream photos
In 162 records from GBIF, adults of this genus have mostly been collected during June (34%), July (34%), May (15%), and August (10%).
In 49 records from GBIF, this genus has been collected at elevations ranging from 20 to 2159 ft, with an average (median) of 755 ft.