One Yarn Nymph
hook: size 10-18 Tiemco 3769 or other 2x heavy nymph hook
thread: 6/0 UNI, dark brown
head: black or copper bead, 5/32”
wingcase: antron yarn, brown stone
thorax: antron yarn, brown stone
legs: antron yarn, brown stone
body: antron yarn, brown stone
tail: antron yarn, brown stone
Place bead on hook and wrap thread to hook bend. Tie in 3" of antron yarn, leaving the length of fibers about one-half of hook length as the tail. Wrap thread forward, a few eye lengths behind the eye. Wrap (palmer)the antron yarn around the hook, 2/3 of the length, building up a tapered body. Tie in and leave tag end on bottom of hook. Cut 1" piece of yarn, and tie in as a wingcase. Wrap the existing tag end of yarn forward to behind the beadhead, building a thorax. Tie off and trim. Tie in a small piece of yarn on each side of the hook shank behind the bead head, forming the legs, about 2/3 of a hook length. Tie off and trim. Fold the wingcase forward, tie off and trim. Whip finish behind the beadhead and epoxy the threads and wingcase.
I was involved in a challenge to tie a fly using only one material, yarn, and thread. Bead heads or bead-chain eyes, optional. It was time to get creative and I had already been experimenting wtih antron yarn. I was trying to tie an all synthetic nymph. This was one of the results. Fish this like a standard heavy nymph.