Itor Dry Fly

Hook: Tiemco TMC103BL, sizes 13 to 17, or Tiemco TMC100,
    sizes 18 to 14.
Thread: Blue dun 8/0 (70 denier).
Tail: Grouse or other speckled feathers fibers.
Abdomen: Olive Superfine Dubbing.
Rib: Badger or medium dun hackle, palmer-wrapped over
    the body.
Wing case: Brown Thin Skin or a substitute.
Thorax: Olive Superfine Dubbing.
Wings: Natural dun cul de canard.