Tying the CDC Thorax Dun

This video shows how to tie the CDC Thorax Dun in the style of Rene Harrop. This is a versatile pattern that can be tied in several sizes and colors to match many mayfly species. The coloration in this video matches that of a Blue Winged Olive or Baetis Mayfly.

CDC Thorax Dun Fly Tying Materials

• Hook: Daiichi 1100 or Tiemco 100 Dry Fly Hook size 14-22
• Thread: 70 Denier Ultra Thread
• Wing: Natural Dun CDC (Cul de Canard)
• Tail: Coq de Leon Fibers
• Abdomen: Turkey Biot dyed to match natural
• Legs/Hackle: Dun Dry Fly Hackle
• Thorax: Nature’s Spirit Fine Natural Dubbing