Elk Hair Caddis Black - Caddis Dry Fly. A best selling time tested Caddis pattern witch has fooled many a trout. You will often see Caddis flies skate across the surface. This can be quite a productive style to replicate when fished, use a slight twitch and figure of eight combination retrieve. This will create a subtle wake with will imitate the natural movement of the Black Elk Hair Caddis and make the Trout more eager to rise.