A heavily weighted October Caddis pupa pattern commonly used for both trout and steelhead. October Caddis usually crawl out on mid-stream boulders or stream side vegetation to hatch. However a long drift period can happen before they crawl out of the water. Emergence usually happens strongest during low light conditions. From the second week of September to the middle of October, this caddis pattern will get you more steelhead hook-ups on your home river. If you don't mind casting this heavy fly, it fishes superbly on the swing too.