The Dee Monkey series of flies have proved to be very succesful,  a great salmon fly in all colour combinations.  The long flowing wing is the key to their success.   Yellow and Black with the addition of mirror flash strands are excellent colours for fresh running fish, bearing a close resemblance to a sand eel.   This version is tied on a plastic tube to ensure maximum mobility in the water...use multi-tip sinking lines to get it fishing at the correct depth.