The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
This midge and several like it, including a female I also photographed, hatched from larvae which were living in some fine mud I'm using as substrate in my bug-rearing aquarium.
This midge was collected from Mystery Creek #62 in New York on April 10th, 2007 and added to Troutnut.com by Troutnut on April 10th, 2007.