The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
This is a photo of the ventral surface of this nymph which acts to help hold the nymph on rock surfaces.
This mayfly was collected from Many streams in Montana on July 5th, 2007 and added to Troutnut.com by Bnewell on June 26th, 2011.