Adapted from Basic Fly Tying by Dick Talleur

The Dressing: Olive Grizzly Woolly Worm.
Hook: Daiichi #1720 or #2220; 3X- or 4X-long, respectively. The #2220 is actually a short streamer-fly hook.
Hook Size: For this exercise, size 6 or 8.
Thread: Fine diameter, such as 8/0 Uni-Thread or comparable; black.
Body: Medium-thick chenille; olive.
Hackle: Grizzly (barred rock) saddle hackle; long and fairly soft.

Tying Steps 1-8

Step 1. 1. Secure the hook in the vise jaws, making sure that the shank is on a flat plane. Pull a few inches of thread out of the bobbin. Take this thread in your left hand and hold it beneath the hook shank, a little way back from the eye. Your left hand is on the far side of the hook. Your right hand is holding the bobbin and is on the near side of the hook.

Steps 2-3. 2. While holding the thread under tension, begin to wrap the thread back over itself toward the rear of the hook. Wrap over and away from yourself. in fact, almost all fly-tying operations move in that direction. There are a few exceptions, but don't be concerned about that right now. Learn to work with only a moderate amount of thread exposed from the bobbin tube, so that you aren't making large, awkward wraps. In this case, it isn't necessary for the wraps to be contiguous, although there will be times when this is desirable. 3. After you've taken perhaps six turns, let the bobbin hang; its weight will maintain the thread tension. Hold the tag end of the thread tightly with your left hand and, using your scissors as a lance, cut it off flush with the hook.

Steps 4-5. 4. Continue to spiral-wrap the thread rearward. As you near the bend, be careful to swing the thread around the point of the hook with each turn, so as to avoid abrading or cutting it. 5. Stop when you've reached the bendthat is, the spot at which the hook begins to slope.

Step 6. Chenille core exposed. 6. Cut a piece of chenille about 7 inches in length. Manicure it as follows: Scrape off a little of the fuzz from one end, exposing about 1/4 inch of the thread core.

Step 7. Tying on the chenille. 7. Tie in the chenille by this exposed core at the rear of the hook shank, just at the point where the bend begins. This technique eliminates the bulk that would result if you tied in the chenille en masse. You can use either the pinch-wrap or the softwrap technique for this, whichever works for you.

Step 8. 8. Wrap the thread forward a few turnsa distance approximately equal to one thickness of chenilleand let it hang there. This will allow you to take one wrap of chenille behind the feather, thus protecting the quill at that spot.