The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
Stream photos
In 142 records from GBIF, adults of this genus have mostly been collected during June (25%), July (22%), May (16%), August (15%), and September (6%).
In 94 records from GBIF, this genus has been collected at elevations ranging from 20 to 8924 ft, with an average (median) of 2723 ft.