Bead Gold or copper slotted tungsten bead (One, sized to the hook)
Tail fibers Natural/brown tail fibers (A small bunch (the tier does not name the material on camera; brown hackle fibers or pheasant tail suit it))
Krystal Flash Pearl or holographic green flash (A few strands for the rib)
Peacock herl Natural peacock herl (Three strands for the abdomen)
Hackle Brown hackle (One feather, three turns at mid-shank)
Poly yarn White poly yarn (Half a strand, for the wings (replaces the usual white biots))
Ice Dub Peacock ice dub (A pinch for the thorax)
How to tie it
With the bead already on the hook, start the thread behind it and wrap down the shank to the bend, opposite the barb.
Compress a bunch of tail fibers, grip them by the tips, and tie them in with a soft loop so the tail sits a little SHORTER than the body. Wrap back over the butts past the halfway point with light wraps, trim, then come back with tighter wraps and take the thread down to the bend again. Binding every material the full length of the shank is what keeps this fly from getting lumpy.
Tie in a few strands of Krystal Flash (pearl or holographic green) and wrap the thread back over them to the bend.
Tie in three strands of peacock herl BY THE TIPS, wrapping the thread forward past the halfway point to capture them and then back to the bend. Aim for a 50/50 split between abdomen and thorax.
Wrap the peacock herl forward to the halfway point and tie it off. Tying it in by the tip makes the fibers stand perpendicular and cup slightly rearward.
Counter-wrap the Krystal Flash forward over the herl in about three open turns, in the opposite direction to the herl, and tie it off at the halfway point.
Tie in a brown hackle and take three wraps right at the middle of the shank, then tie it off. Do not fuss if some barbs sweep back. It is a nymph.
Split a strand of white poly yarn in half, lick and cut the ends even, then lay them along the shank with the cut ends level with the hook eye. Take a couple of wraps, pull the yarn back so the butts tuck up under the bead, and bury the ends there. Trim the wings to about one body length; they stand in for the white biots of a standard Prince.
Dub peacock Ice Dub onto the thread and wrap it rearward first to force the wings and hackle back, then take loose wraps forward to just behind the bead.