This attractor dry fly is great for imitating stoneflies and caddis.
Stimulator
Consists of the following 36 flies: (3) Yellow Sally - Dry Fly, #14 (3) Royal Coachman - Dry Fly, #16 (3) March Brown - Dry Fly, #12 (3) Drake Green
Make Them Rise - Dry Flies for Trout (Deluxe) - Fly Deal Flies
The Smoky Mountain Stimulator Dry Fly Pattern
Stimulator
A Classic American Fly: The Stimulator - Fly Fisherman
Stimulator - Orange Pacific Fly Fishers
Stimulator Fly Tying - Randall Kaufmann Fly Pattern
Perhonsidontaa / Fly Tying - Stimulator Pintaperho /- Dry Fly
Fly Tying a Foam Humpy (Dry Fly Attractor Pattern)
Fly Tying the Stimulator with Barry Ord Clarke
ORVIS: Tom Rosenbauer Ties a Stimulator
Mini Stimulator style Caddis Dry Fly - McFly Angler Fly Tying Tutorials
Yellow Sally Stimulator
How to save your hackle: Improved Stimulator with Greg LaBonte
Mop Grub Fly - Simple yet effective - McFly Angler Fly Tying