Ostrich Scud
Hook: Curved Scud Pupa #14 - #18
Thread: 8/0 to match
Rib: Copper Wire Fine
Shellback: Stillwater Solutionstm Midge Flex 1/8th inch
Body: Stillwater Solutionstm Ostrich Herl, Olive or Light Olive
Head: Gold or Copper Bead, 3/32nd inch (optional)
Check out Brian and Phil's book "stillwater solutions recipes" Volume One: 30 Proven Patterns for this and more great flies. For those of you who are allowed or dare to fish droppers the baby damsel makes a great upper fly 18 inches above a chironomid. It will sometimes get the take but more often then not it gets them close, they refuse it but oh look at the tasty chronie right below it!
No matter how many great online resources there are out there, this book is worth picking up. At the very least you will be supporting a couple of guys who given lots of themselves to help all of us stillwater fisher persons.
Check your local shop for a copy!