The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
Stream photos
In 41 records from GBIF, adults of this genus have mostly been collected during May (27%), June (27%), July (24%), September (10%), and August (7%).
In 16 records from GBIF, this genus has been collected at elevations ranging from 20 to 6562 ft, with an average (median) of 830 ft.