Wissahickon Midge
Note: Actually based on a gnat or black fly but it's my go to "midge" pattern. Best size seems to be a 22. Body is CDC feathers tied in by the tip, and wrapped like a CDC&Elk. When I get down to the smaller sizes, I use just the barbules for the body. Wing is a clump of white CDC. Initially tied as a dry, discovered by accident that it's equally effective when wet and fished as a dropper.