Calf body hair White calf body hair (One tuft for the tail, a second equal tuft for the wing)
Rabbit dubbing (or superfine synthetic) Black dubbing (About a 3 in. noodle)
Dry fly hackle Brown hackle (1 feather, barbs 1.5x the hook gap)
Head cement or UV resin Clear uv resin (1 small drop)
How to tie it
Start black 70 denier thread near the middle of the shank and wrap back to the start of the bend.
Tie in a decent tuft of white calf body hair (not calf tail) for the tail, one shank-length long. Bind it down firmly, then trim the butts forward. It is messy stuff, so take your time cleaning it up.
Take the thread forward to about two eye-lengths behind the eye. Tie in a second tuft of white calf body hair of the same size for the upright wing, using several firm wraps, then bury the butt ends under thread so nothing pulls loose. Ideally set this a touch farther back than feels natural. The fly crowds the eye if you go too far forward.
Stand the wing upright with a few thread wraps in front of and under the base, then take two or three wraps horizontally around the bunch itself, like a parachute post, to gather the fibers into one tidy upright wing.
Return the thread to the front of the tail, wax it, and spin on a black dubbing noodle. Wrap a slightly tapered body forward to the back of the wing.
Tie in a brown dry fly hackle with barbs about 1.5 times the hook gap, catching it in slightly behind the wing base since most of the turns go behind the post.
Wrap three or four hackle turns behind the wing and one or two in front, then secure the stem with the thread, pull all the fibers rearward, and clear a small working space at the eye.
Whip finish through the fibers with a zigzag so you do not trap barbs, snip the excess hackle tip, and add the smallest drop of head cement or UV resin to the thread wraps for durability.