This is the most realistic Green Drake (Ephemera guttulatais) pattern that we offer. The green drake is one of the largest mayflies that trout have available to them. They generally hatch mid-day, and will cause trout to focus only on this fly pattern. The nymph emerges to the surface of the water quickly, and after drying its wings, flies off. This leaves little time for trout to grab a bite, so they become very opportunistic when they see the electric green drake dry fly.