The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
I lost track of this specimen before I could get it under my microscope, but caddis expert Dave Ruiter was able to identify it from pictures as Glossosoma, with an uncertain suggestion of G. alascense as the most likely species.
This caddisfly was collected from Rock Creek in Montana on July 9th, 2019 and added to Troutnut.com by Troutnut on July 18th, 2019.