Materials needed:
Hook: Curved shank thin wire hook. I'm using a 206BL, size #16
Thread: Olive 8/0
Body: Olive peacock herl with all the fuzz stripped off.
Post: White closed cell foam. I'm using 2.5mm foam for my size #16 hook
Thorax: Peacock herl
Hackle: Medium dun dry fly hackle, one size larger than your hook.
Put your hook in your vice.
Start your thread a little behind the hook eye.
Cut a piece of foam about half the width of the hook gap. Cut the end of the foam on an angle so when you tie it in you don't add too much bulk
Tie in your foam post with 4-6 tight thread wraps.
Wrap a few wraps of thread in front of the post to help hold it in place, and wrap as many thread wraps that it takes to cover your tie in point completely with thread. Make a nice smooth transition from the hook shank up to the foam post.
Wrap 5-6 wraps of thread around just the foam post.
Tie in your hackle parallel with the foam post so it stands up vertically as shown.
Tie in your olive dyed stripped peacock herl to about half-way down the hook gap.
Wrap the stripped peacock herl forward to build the body.
Wrap the herl up to the foam post.
Tie off the herl, and trim the butt end.
Apply some thin U.V. resin to the body to improve durability.
Tie in your natural peacock herl just behind the foam post.
Wrap the peacock herl forward with a few figure 8 wraps, and then tie it off with your thread.
Wrap your hackle around just the foam post 4-6 wraps. Tie it off by wrapping your thread around the hackle and the post, locking the hackle in place.
Tie your thread off just behind the hook eye, and trim the butt end of your hackle.
Then whip finish, and trim your thread.
Trim the foam post.
You can optionally flip the fly over and put a drop of Zap-A-Gap on the hook eye, and let it seep into the thorax/hackle/post which will make it extra durable. Just make sure you don't use too much.
If you'd like to see an easy way to strip all the fuzz off the peacock herl see this post: http://mytroutfly.blogspot.com/2013/07/stripping-peacock-herl-easy-way.html
And here is how I dye the stripped peacock herl: http://mytroutfly.blogspot.com/2013/07/dyeing-your-own-fly-tying-materials-in.html
