Published Dec 7. 2015 - 8 years ago
Updated or edited Sep 27. 2018

Biot Body CDC Dry Fly

Certain dry flies have a specific characteristic that tend to capture the attention of difficult trout, but this one has three. With a biot body, Realistic Mayfly Wings, and cdc at the thorax, there is lots going on with this pattern. In this video, I tie a fly to represent the Blue Wing Olive (BWO) mayfly, yet the beauty of the Biot Body CDC Dry Fly is that it can be modified to represent many other mayflies. One additional benefit of this fly is that it can both represent the adult and emerger stages of mayflies, yet another reason why it can be so effective.

Featured in this video are the D103BL hooks from Allen Fly Fishing; you can find those hooks and many others at the following link:

For more information on the "Realistic May Wings" material and some other great products, visit Frosty Fly’s website:

If you're interested in the Stonfo Elite Hackle Pliers, a location to purchase them can be found here:

As mentioned in the video, I'd love to hear from you about your favorite dry flies to fish for difficult trout. Feel free to leave any additional questions/comments on this YouTube page, or you can email me:

Thanks for viewing this YouTube fly tying tutorial, and I encourage you to view my additional videos at the following website:


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