CDC Callibaetis

Hook: Gamakatsu S10 or another standard dry-fly hook, sizes 16 and 14.
Thread: Gray or tan 8/0 (70 denier).
Tail: Horsehair paintbrush fibers, dyed brown.
Body: Gray or tan Wonder Wrap.
Shellback: Brown horsehair paintbrush fibers.
Thorax: Olive-brown mink dubbing.
Hackle: Dark dun cul de canard. Make the CDC hackle using the split-thread technique, or use a product called Henry’s Fork Hackle, by Montana Fly Company.