The Girdle Bug is a classic Stonefly Nymph Fly Pattern, and a deadly one at that! The Girdle Bug has a life like profile and goofy white legs, but don’t let the funny looks of this fly fool you…it is a fish catcher! The Girdle Bug imitates a Stonefly Nymph floating helplessly in the current. The Girdle Bug can be fished on the dead drift, but also can be fished on the strip (behind a streamer). The Girdle Bug is a must have for high water and spring time conditions.