Possie Bugger 

Possie Bugger

The possie bugger is a hall of fame Oregon fly. I’ve probably caught more fish on this pattern than any other two combined. It’s a good idea to double up the rib on this fly — since it’s going to catch so many fish. This is the guide version — reinforce the traditional Flashabou strands with copper wire. It fishes well as a caddis pupae or cased caddis pattern.

http://oregonflyfishingblog.com/2008/04/10/video-tying-the-possie-bugger/