The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
In 1 records from GBIF, adults of this species have been collected during June (100%).
Most physical descriptions on Troutnut are direct or slightly edited quotes from the original scientific sources describing or updating the species, although there may be errors in copying them to this website. Such descriptions aren't always definitive, because species often turn out to be more variable than the original describers observed. In some cases, only a single specimen was described! However, they are useful starting points.
A brown species; longitudinal veins light brown.
Head and thorax brown. Fore legs brown. Wings hyaline; cross veins pale, almost invisible; longitudinal veins light brown. Abdominal tergites deep blackish brown, the apical segments somewhat lighter brown. Blackish markings in the region of the spiracles. Sternites pale brownish; 1-7 hyaline, 8 and 9 opaque, deeper brown. Penes as in fig. 135.