The Kossiedun piece reveals a great deal about the origin and design alterations of the pattern, The Kite by Oliver Kite. What I found interesting, aside from the overall excellent info at Kossiedun, is the idea of laying down a layer of abdomen (the purple silk, in this instance) and then over wrapping it with spread wraps of heron (or perhaps ostrich) and allowing the under layer to show through. The usual intent is to closely wrap one wrap against the previous wrap. Nice picture and always an informative site at Kossiedun.

“In tying this pattern, I have also included a different way of tying a parachute. Hans Van Klinken, famous for the ‘klinkhamer’, originated this approach.  What I like about it is that the tying off actually occurs right at the bottom of the wing post and under the hackle.  This effectively places the thorax and body down into the water surface and this, I am sure, gives the fish a better profile and establishes a key trigger point.”