Biot Body Parachute Dun

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CDC Biot Parachute, Adams
CDC Biot Parachute, Adams
Tying Instructions
Materials: (to Order Material, click the link)
      Actual Callibaetis
      Blue Wing Olive

Notes: Biots are the stiff barbs found along the leading edge of a primary flight feather. They are necessary to give birds flight. There are only two birds that fly tiers utilize biots, Turkeys and Geese. The goose biots are shorter and wider than turkey and are often used for tails on stoneflies and wingbuds. For bodies, Goose biots can be used on Mayfly patterns in the #16-20 sizes. Turkey biots are much longer and often will be a good choice for mayfly patterns in sizes 10 to 14. For patterns smaller than #14, Turkey biots are too large and other materials such as stripped quills will work better. Turkey Biot Quills are sold as entire feathers and the "lift" side of the feather can be used for bodies but the barb is softer and thinner than the biot side. These barbs are suitable for use on sizes #16-22 but protect them with a layer of glue such as Zap-a-gap or Loons Clear Finish.

Depending on how the biot is wrapped, you can get either a ribbed appearance or a smooth one. Peel the biot from quill. At the base of the biot is a notch or indentation. Attaching the biot to the hook shank, if the notch faces downward the body will be smooth, if it faces upward, the body will have a series of fringed barbules. The smooth body will require that you overlap the biot somewhat to hide the leading fringe side. Remember to keep your biots damp when in use as this will keep them from splitting, just like quills.

A number of fly tyers are known for their use of biot bodies. A.K. Best preferred Turkey Biots for most of his mayflies that were #10-14 but preferred stripped quills for smaller mayflies. Rene Harrop utilizes Turkey Biots for many of of his mayfly duns down to a size 22. Rene will often use CDC as a wingpost. And, the late Shane Stalcup, was also fond of using goose biots with a CDC hackle.  

Variations:

Para Biot BWO
Para Biot BWO
Materials: (to Order Material, click the link)

 



Para Biot Suphur
Para Biot Sulphur


Materials: (to Order Material, click the link)


Parachute Dun, Mahogany
Parachute Dun, Mahogany


Materials: (to Order Material, click the link)


CDC Parachute Dun, Olive
CDC Parachute Dun, Olive


Materials: (to Order Material, click the link)
©2020 Steve Schalla
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