The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
Ephemerella is a very common genus of mayfly in Montana but nymphs are difficult to identify to species.
This mayfly was collected from Rock Creek in Montana on June 12th, 2007 and added to Troutnut.com by Bnewell on June 26th, 2011.