The Chuck Caddis is a long-standing pattern, and remains a very effective one coast-to-coast. I first learned this pattern more than 25 years ago, and still tie and fish it faithfully.
Chuck Caddis Recipe
Hook: #12-8 Standard Dry
Thread: 6/0 Rusty-Brown Uni-thread
Abdomen: #25 Cinnamon Caddis Hareline
Under-wing: Wood Duck CDC
Thorax: #25 Cinnamon Caddis Hareline