The Jacobpattern is a deceptively simple, yet devastatingly effective, little fly. I cannot commend it to your consideration better than that
Jacobpattern
Hook: Dry fly hook #20-28
Thread: Benecchi 12/0, black
Hackle: Whiting cock, crizzly
Body: Peacock herl, fine
Rib: Holographic silver tinsel
Video - here - please view in HD, if able:
http://www.youtube.com/watch?v=N6EPlC3feiU
Cheers,
Hans W