Stimulator (dry fly)

Artificial fly

For other uses, see Stimulator.

Stimulator

Artificial fly

Orange stimulator

Type| Dry fly
Imitates| Adult stoneflies, caddis, grasshoppers
History
Creator| Jim Slattery, Randall Kaufmann
Materials
Typical sizes| 6-18 3X long
Typical hooks| TMC 200R, Firehole 718
Thread| 6/0, 140 denier
Tail| Deer or Elk
Body| Dry fly dubbing, floss
Wing| Deer or Elk
Ribbing| Dry fly hackle
Hackle| Dry fly hackle
Thorax| Dry fly dubbing
Uses
Primary use| Trout

The Stimulator is a dry fly popularized by angler, fly tyer and author Randall Kaufmann to imitate large adult stoneflies.[1]

## Origin

[edit]

The Stimulator pattern is a derivative of earlier stonefly patterns—the Improved Sofa Pillow (1940s) and Yellow-bellied Mattress Trasher (1970s). Many anglers believe the name Stimulator  was given to the pattern by Jim Slattery, a Montana angler who renamed his  Fluttering Stonefly  pattern. Others contend the pattern was derived from the Trude  style dry flies developed in 1903. However, the pattern was clearly popularized and promoted by Randall Kaufmann, a fly shop owner, angler and author in Seattle, WA and Portland, OR in the 1980s.[1]

## Imitates

[edit]

Originally tied to imitate large stoneflies, the Stimulator is also useful to imitate adult caddis, grasshoppers and large mayflies.[2]

## Materials[3]

[edit]

* Hook: 3X Long Curved Dry Fly Size 6-18
* Thread: 6/0 or 140 denier matching color to pattern
* Tail: Elk, Deer or Moose hair
* Body: Dry fly dubbing matching color to pattern
* Ribbing: Short dry fly hackle palmered, typically grizzly or brown
* Wing: Deer or Elk hair
* Thorax: Dry fly dubbing matching color to pattern
* Hackle: Dry fly hackle, typically grizzly or brown

## Variations

[edit]

As described in Fly Patterns--Tie Thousands of Flies (2008), Randall and Mary Kaufmann[4]

* Crystal Stimulator (Black, Gold, Green, Orange Peacock, Pearl, Royal Cerise, Tan, Yellow)
* Kaufmann's Stimulator (Green, Orange, Yellow)
* Kaufmann's Stimulator RL (Rubber Legs), (Gray, Lime, Orange, Pearl, Royal, Tan, Yellow)

Stimulator Variations

* Crystal Stimulator Lime Green

* Crystal Stimulator Black

* Crystal Stimulator Peacock

* Yellow Stimulator

## Notes

[edit]

1. ^ a b "Attractor Fly Patterns". Rocky River Trout Unlimited. January 2022.
2. ^ Hughes, Dave (1999). Trout Flies-The Tier's Reference. Mechanicsburg, PA: Stackpole Books. pp. 277–279\. ISBN 978-0-8117-1601-7.
3. ^ Kaufmann, Randall (1991). Tying Dry Flies-The Complete Dry Fly Instruction and Pattern Manual. Portland, Or: Western Fisherman Press. pp. 140–143\. ISBN 0961705930.
4. ^ Kaufmann, Randall; Kaufmann, Mary (2008). Fly Patterns-Tie Thousands of Flies. Moose, WY: Western Fisherman Press. p. 169, 236-7. ISBN 9781885212238.

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