
Hook-Mustad 36890 #6
Thread- UTC 140 FL FIRE ORANGE
Tail & Hackle- Orange Whiting American Hen
Tag- tying thread
Body- Black Beaver Dubbing blended with Black Light responsive Trilobal Nylon.
Counter Rib- MD Silver Ultra Wire
Under LED light...

Under Black Light...

Under Incandescent and Black Light...

this is closer to full sunlight on a clear day swinging the fly near the surface!

I again recommend reading What Fish See: Understanding optics and color shifts for designing lures and flies by Colin J. Kageyama, O.D., F.C.O.V.D.1999