Flyfishing the Sierras

WD-40

spacer Olive WD 40
Tying Instructions
Materials:
  • Hook: TMC 2487 Size 18-24
  • Thread: Olive 8/0 Uni-thread
  • Abdomen: Olive 8/0 Uni-thread
  • Wingcase: Wood Duck
  • Tail: Wood Duck
  • Thorax: Muskrat

Notes:This fly was first tied in 1982 for Colorado's Frying Pan River, by Mark Engler. It imitates the larger midges that get trapped in the shuck for extended periods. It is more a style of midge emerger than a specific pattern. Thread and dubbing can be chosen to match the color of any natural, the most popular colors being Olive, Black, Dark Brown, Gray, and Rust. The WD stands for "Wood Duck", of which each pattern uses this material for the tail and wingcase. The original WD-40 had an olive thread body and a muskrat thorax. There are some substitions in which the Wood Duck wingcase has been replaced by Krystal Flash or Razor Foam but this would really make it something other than a WD, wouldn't it. Another interesting variation is to substitute the dubbed abdomen with a glass bead or two. You can also easily incorporate legs to the pattern by utilizing the butt ends of the wingcase rather than trimming them flush to the shank.

Variations:



Brown WD-40
Brown WD40


Materials:
  • Hook: TMC 2487 Size 18-24
  • Thread: Rusty Brown 8/0 Uni-thread
  • Abdomen: Rusty Brown 8/0 Uni-thread
  • Wingcase: Wood Duck
  • Tail: Wood Duck
  • Thorax: Olive Superfine


BH Black WD-40
Black WD40


Materials:
  • Hook: TMC 2487 Size 18-24
  • Thread: Black 8/0 Uni-thread
  • Head: Black Bead
  • Abdomen: Black 8/0 Uni-thread
  • Wingcase: Wood Duck
  • Tail: Wood Duck
  • Thorax: Black Superfine


Olive WD-40 w/legs
WD40


Materials:
  • Hook: TMC 2487 Size 18-24
  • Thread: Olive 8/0 Uni-thread
  • Abdomen: Olive 8/0 Uni-thread
  • Wingcase: Wood Duck
  • Legs: Wood Duck
  • Tail: Wood Duck
  • Thorax: Golden Olive Superfine


Loop Wing WD-40
Loop Wing WD40


Materials:
  • Hook: TMC 2487 Size 18-24
  • Thread: Rusty Dun 8/0 Uni-thread
  • Abdomen: Rusty Dun 8/0 Uni-thread
  • Wingcase: Wood Duck, loop wing style
  • Tail: Wood Duck
  • Thorax: Gray Superfine


Olive Bead WD-40
Olive Bead WD40


Materials:
  • Hook: TMC 2487 Size 18-24
  • Thread: Olive 8/0 Uni-thread
  • Thorax: Green Glass Bead
  • Abdomen: Olive 8/0 Uni-thread
  • Wingcase: Wood Duck
  • Tail: Wood Duck
  • Legs: Wood Duck
©2007 Steve Schalla
This page is not to be copied without my explicit permission.

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