Hook:

12 - 20 Tiemco 100 or other standard TDE dry fly

Thread:

8/0 Uni-Thread Black

Wing:

Black polypropylene yarn clipped to leave a wing butt and pitched forward 45 degrees

Tail:

Mayfly Brown straight zelon

Body:

Peacock Herl with a scarlet red center band - silk thread or floss

Hackle:

Grizzly clipped flush with hook point

A delicious modification of the classic Royal Coachman.  I first saw this bug in Montana, on the Yellowstone River and the Cutts would not leave it alone.  Since then I have tied it on when there are Rainbows lurking about and continue to be impressed with how often it seems to turn some heads.