Fly Fishing aficionado and blog visitor, JasonB (Fly to Fly) shared a suggestion of wrapping a single strand of Krystal Flash with a body material such as a yarn that is then twisted/tightened. Then when the material is wrapped, a periodic hint of flash is displayed. I tried it above with peacock herl, but most of it got lost in the wraps. Still, it helped bind down the fragile Krystal flash.  A good idea. I have wrapped copper wire around herl to reinforce the herl and add ribbing. The hackle is dry fly quality grizzly hackle. Small strips of closed cell foam were cut (maybe 1/8″ wide). Small wings are cut from the strips and tied in just back of the eye with figure 8 wraps.  One fiber of peacock herl is tied in behind the foam wing, then the herl is wrapped in a figure 8 pattern around the foam wing to form a thorax that encompasses the foam wing. Tie off  the fly with a neat thread head. I have seen this emerger pattern with silver or red ribbing. The hook is a size 16 dry fly hook.