When fishing dries into a glare, being able to see the pattern is often more important than the actual pattern fished. This is when a very dark pattern often is the best choice.
Hook: Grip 14723BL #14
Thread: Benecchi 12/0, black
Body: Darning yarn, single ply, medium grey
Wing/stubs: Snowshoe hare, dyed dark brown
Hackle: Grizzly, dyed dark dun