On warm summer evenings in Western Canada we enjoy about two weeks of traveller sedge (caddis) emergences with the naturals growing to size 6 proportions.
The pattern below works well when the fish are targetting the pupae as they emerge from the bottom to the surface.
Miss Communicado

RECIPE
Hook: Mustad C49S #8
Body: Burnt orange V-Rib/ Tan Senyo's Laser Yarn in sparse dubbing loop and palmered between wraps of V-Rib.
Wingcase: Thinskin Mottled Rust
Thorax: Reddish Brown Arizona Simi Seal
Hackle: Hen Back Natural
Head: Peacock Herl