Trout Crack
Hook: Curved
Weight: Lead or non lead wire (optional)
Thread: Match the dubbing color
Body: Dubbing
Shell back: Liquid/larva lace, d-rib, v-rib etc
Tying Notes
This fly can be tied weighted or un-weighted, in different colors, insert different color wire into liquid lace tubing for a different effect, use different colors of liquid/larva lace, v-rib, d-rib etc.
Reference
John Wilson (a legendary guide on the White River) developed this pattern.