There are many variants of the so called "Buzzer", the worm is a small buzzer with a hotspot in the middle.
The fly can be fished like many buzzers on either an intermediate or floating line using a very slow figure of eight retrieve or dead drift. I have had many takes sitting this buzzer 2-4 feet below a dry fly used as an indicator and fished close to weed beds in shallow water. In winter this fly has excelled for me when trout are still taking buzzers as part of their diet.
Wind the thread down the hookshank, catching in a piece of flexifloss to the base of the hook. Wind the thread back up the hookshank to the middle where the hotspot will begin.
Wind the piece of flexifloss up the hookshank to the middle where the hotspot will begin and secure with thread. Trim the waste flexifloss.
Catch in some silver tinsel and move the thread slightly up the hookshank to a place where the hotspot will finish.
Wind the tinsel around the hookshank until the hotspot is created and secure with thread.
Wind the thread back to the hook eye.
Catch in some olive flexifloss and wind the thread down to the hotspot catching in the flexifloss as you go.
Return the thread back to the eye.
Wind the remaining flexifloss up the hookshank to the eye and secure with thread.
Varnish the whole body with Sally Hansen Hard as Nails varnish. For best results the body should be varnished at least 3 times to produce a good solid finish.