Rene Harrop's CDC Cluster Midge has taken the Griffith's Gnat and added a CDC wing that makes it much more visible to the angler and improves its floatability. This pattern works great when trout are keying in on clusters of midges floating on the surface.
Hook: Straight eye dry fly hook, sizes 16-22
Thread: Black 8/0 or 70 denier
Body: Peacock Herl
Hackle: Grizzly Wing: