Light caribou, or bleached deer or elk hair (wing) Light natural roe deer hair (Medium tuft, stacked)
How to tie it
Lay a tan thread base down to the start of the bend.
Tie in the white or light ginger dry fly hackle at the rear, taking the tie-in a little way around the bend, and bind the butt forward. Keep the barbs short. About one hook gap.
Take the thread back to the rear and wax it, then dub a thin two-inch noodle of light tan superfine dubbing. Wrap a slim caddis body forward, stopping well short of the eye.
Palmer the hackle forward over the body. Close turns make a high floater for fast water; three or four open turns is enough if you want it to sit lower. Tie it off and trim.
Wing: stack a medium tuft of light caribou (or bleached deer or elk), give your thread a clockwise spin to cord it up, and measure the wing to the hook bend or slightly past.
Anchor the wing with a pinch wrap well back from the eye, this fly needs room at the front, then add tight wraps before cutting the butts.
Trim the butt ends off short, working a little at a time and sculpting rather than taking one big cut, so you do not roll the wing around the shank.
Wrap over the trimmed butts to build the large tan thread head that characterizes this fly, being careful not to close off the eye.
Whip finish, singe or snip any fibers sticking out over the eye, and add a drop of head cement.