The Olive and Quill Wet Fly is a simple yet effective pattern, often used to imitate various aquatic insects, especially mayflies. The body of the fly is crafted from stripped peacock quill, which provides a natural segmented appearance with subtle color variation. The quill body is typically olive-colored, giving the fly its name and making it particularly effective in clear water. The tail is usually made of brown or olive hackle fibers, and the ribbing, if used, is often fine gold or copper wire for added durability. The hackle, tied in as a collar, is typically soft brown or olive hen, which adds lifelike movement in the water. This fly is versatile and works well in both rivers and streams, especially when trout are feeding on emerging insects just below the surface.