Lance Egan's Rainbow Warrior.
There's not much that needs to be said about the effectiveness of this fly... Incredible dropper or lead fly during a mayfly hatch. Most effective during Spring of Fall during the BWO hatches.
The tungsten bead head will get it down in any riffle or deep pool. Trail this with a fly that matches that hatch dead on!
Hook: Tiemco 2457 (up to 18) or 2487 (20-24)
Thread: Red UTC 70 Denier (up to 18) or Veevus 14/0 (20-24)
Bead: Silver Tungsten
Tail: Natural Pheasant Tail
Body: Large Pearl Tinsel (up to 18) or Medium (20-24)
Wing Case: Medium Pearl Tinsel (all sizes)