This is a simple version of how a row of fly stitch can be decorated using a contrasting colored thread.
To do this stitch, you need to know how to do the Fly Stitch.
|Fig 1: First make a vertical row of fly stitch. To whip, take a contrasting thread and start from the tip of the first tail. Whip the thread around each tail as shown in the illustration. Be careful not to pluck the fabric beneath.||Fig 2: A finished row of whipped fly stitch would appear like this.|