The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
Stream photos
In 34 records from GBIF, adults of this genus have mostly been collected during July (41%), August (26%), June (24%), and September (6%).
In 347 records from GBIF, this genus has been collected at elevations ranging from -30 to 3524 ft, with an average (median) of 988 ft.