Attractor Stonefly Pattern / Stimulator Fly - The Fly Crate

Trout get up every morning for this pattern. Late April thru October, Stimulators are the key to a trout's heart. Imitating not only stoneflies but also caddis and hoppers, Stimulators are the fine cuisine of attractor flies. Never be caught with your pants down without a handful of Stimulators.

20 Incher Stonefly Fishing Flies for Trout

Yellow Stimulator - The Trout Spot

Stimulator Attractor Dry Fly | Royal | Size 14 | Orvis

Stimulator-Discount Trout Flies- — Big Y Fly Co

Attractor Flies Versus an Exact Imitation - Randall Kauffman

Stimulator Fly Yellow Stimulator

FLY FISHING FLIES - Traditional Purple STIMULATOR size #10 (6 pcs.)

Our take on updating an old classic, the humpy. The split poly wing is easy to see and gives a buggy appearance, while the hackle and segmented legs are designed to add attraction, floatation and balance.

Rio Dry Humper - Red - Size 16

Stimulator, Green

Flies: Stimulator – Fightmaster Flyfishing Journal