In the late spring and early summer keep your eye out for adult damsel flies (they look like a small dragon fly with a iridescent blue body and silvery-white wings) cruising along the edges of ponds and lakes. If you see them, don't hesitate to try this pattern fished a foot or two under the water's surface. Trout in still-waters key into damsel fly nymphs as the move to the edges in shallow water, getting ready to emerge as adults.. Available in size 10, 12 & 14.