Hook: Curved nymph hook (here, a Tiemco 2302), sizes 4-12.
Head: Copper bead.
Thread: Olive UTC 140 denier.
Antennae: Life Flex or Spanflex.
Underbody: Lead-free wire.
Tails: Life Flex or Spanflex.
Shellback: Brown Flashback.
Body: Dark golden-stone D-Rib.
Wingcase: Brown Flashback.
Gills/thorax: Golden stone dubbing.
Legs: Hen hackle.
Via: Rich Strolis