I usually tie this fly on a size 16 light wire dry fly hook. Another tip is too leave a good tag of thread off the back to wind back through the peacock herl to give the fly a little more durability. The fly is finished off with a couple turns of starling hackle, the feathers with the green iridescent sheen.
Not only does this fly fool trout keyed into early black stones but will also fool trout taking black caddis, ants, or beetles in the summer months. This is a simple and versatile fly throughout the season.
#16 TMC 100 or Mustad R50
body, 1 strand of peacock herl