Hook 2X-long nymph hook (here, a Dai-Riki 730), and 20, 18
Thread Yellow olive, or 70-denier 8/0
Materials
Bead Gold bead, 5/64-inch
Tails Coq de Leon fibers
Body Stripped peacock herl
Wingcase Dyed golden-yellow pheasant tail fibers
Thorax Olive rabbit-fur dubbing
How to tie it
Slide the 5/64-inch gold bead onto the hook small hole first and seat it against the back of the eye. Start the yellow olive thread at the back edge of the bead and take several wraps rearward before snipping the tag.
Strip six or so Coq de Leon fibers, align the tips, and measure a tail about a shank length long. Transfer that measurement to the start of the bend and snip the butts square using the back edge of the bead as a guide. Spin the bobbin counterclockwise to uncord the thread so the first wrap jumps rearward and catches the fibers, then bind them on top of the shank back to the start of the bend.
Take a single peacock herl from below the eye of the plume and strip the flue off with an eraser or fingernail. Trim the brittle tip, leaving an inch and a half or more of quill. Lay the tip end against the near side of the shank, bind it back to the base of the tail, then forward; snip the tip and continue wrapping to the back of the bead.
Build taper with thread: wrap back a third of the shank and forward to the bead, back two-thirds and forward, then on the third trip all the way to the base of the tail. Spin the bobbin counterclockwise to flatten the thread and smooth out any lumps, finishing at the back of the bead.
Wrap the stripped peacock herl forward in open spiral turns, six or seven, up to the bead. Tie off behind the bead and snip close.
Coat the whole body with the thinnest possible layer of thin UV resin, smooth it with a bodkin so the body stays even and svelte, and cure it with the UV light.
Strip half a dozen dyed golden-yellow pheasant tail fibers, cut off the curly butts and a quarter inch of the brittle tips. Uncord the thread again and catch the fibers in at the back edge of the bead, binding rearward and testing the length until the wingcase looks right.
Dub a short, thin noodle of olive rabbit-fur dubbing on the thread and wrap a slightly enlarged thorax, ending with bare thread at the back of the bead.
Pull the pheasant tail fibers over the top of the thorax and over the bead to form the wingcase and anchor them with two tight wraps of thread; keep the collar to an absolute minimum. Snip the butts close.
Coat the wingcase, the two thread wraps and the snipped butts with a little of the same thin UV resin, keeping it low and thin, and cure. Snip the thread off; the cured resin holds it without a whip finish. Roughen the rabbit-fur thorax with a piece of velcro and trim any wayward fibers.