This fly is useful as a general searching pattern, an imitation of dark colored duns and also during spinner falls. The original called for pheasant tail fibers to be wound on as a body. Since the advent of zelon or antron based dubbings in pheasant tail color, replacing the fibers with the synthetic creates a much more durable fly. It is also commonly tied with a dun hackle in place of the brown.
Hook : Dry fly, #12 – #18
Tail : Pheasant tail fibers
Body : Pheasant tail colored synthetic dubbin
Rib (optional) : Fine red colored wire
Wing : Calf body hair – tied as a post
Hackle : Brown – parachute
Fly tied by John Lazar