Jamieson's Shetland Wool Caddis.
"Shetland wool" body, collar of Shetland Sheepdog and Whiting hen hackle on a barbless size #14 heavy klinkhamer hook (similar in overall size to a #12 scud hood).
Effective Caddis pupa or Stonefly pattern, Mayflies too. The hair collar can be picked out to simulate the pupa or nymph shedding it's exoskeleton. On-stream, wipe it in the algae to pick up some stream scent & hide yours. Sold as three flies.
Thanks again!!! Your flies are absolutely the best. You truly make a great product, these flies last forever provided i don't lose them. Thank you again ! James in NY