Stimulator Stonef - The Stimulator fly is a go-to attractor dry fly, particularly when you're dry fly fishing during a big stone fly hatch or salmon fly hatch. This dry fly sits

Stimulator (dry fly) - Wikipedia

Tying Royal Stimulator - Stonefly/Salmonfly - Attractor Dry Fly - by BK

A Classic American Fly: The Stimulator - Fly Fisherman

Tying Royal Stimulator - Stonefly/Salmonfly - Attractor Dry Fly - by BK

This attractor dry fly is great for imitating stoneflies and caddis.

Stimulator

Black Stimulator Attractor Dry Fly for trout fishing

Stimulator (dry fly) - Wikipedia

A Classic American Fly: The Stimulator - Fly Fisherman

Stoneflies & Stimulator: excellent dry fly patterns

Black Stimulator Attractor Dry Fly for trout fishing

The Stimulator is an excellent high profile stonefly imitation and searching pattern.

Stimulator

El Camino - Skwala Pacific Fly Fishers