Stimulator
Stimulator
Yes, the Stimulator is most often tied as a Stonefly pattern, especially Golden Stone. However, this is the perfect pattern for the October Caddis. Frankly, I have used it with good success as a Traveling Sedge in B.C. Attached here is a link to an excellent! tutorial on how to tie the Stimulator.
Morrish Caddis~OFFB
Morrish Caddis~OFFB

http://oregonflyfishingblog.com/2008/09/26/fly-tying-video-morrish-october-caddis/