Cased Grannom Killerbug Sekasa Kebari
Hook - Owner's Super Yamame Eyeless Hook (Japanese Hook Size 7)
Thread - Pearsall's Gossamer Silk (Pale Olive / Well waxed)
Eye - Braided Jewelry Bead Cord (Black)
Hackle - Hen Ringneck Pheasant (Neck Hackle / Natural)
Abdomen - Tenkarabum's Utah Killerbug Yarn (strand of yarn was separated, before tying in, then the two ply are wrapped together)
Underbody - UTC Ultrawire (Copper / Medium)
Head - Pearsall's Gossamer Silk (Pale Olive) - Coated with layer of Tack Free Clear Cure Goo and zapped with a UV light
Note - The head on this fly is tyed intentionally "plump". I wanted the head to appear to be a larva peeking out of a case.
Here are a couple photos of this fly underwater. If you look closely at the abdomen of the fly (bottom photograph), you can see some of the copper wire (underbody/weight) peaking thru the wool yarn. The yarn becomes semitransparent when it absorbs water.
It looks like the fly is hovering, but it is an optical illusion. The fly is actually setting at the bottom of a small acrylic tank. The refractive index of the material, creates a mirror effect, reflecting the image of the fly back up from below.
I like the way this fly rests on the bottom. I dropped the fly into the tank many times, and each time it hit the bottom, the photo shows the way the fly came to rest each time. I believe the hook point up rides upwards, due to the weight of the copper wire underbody and how the reversed (sekasa) hackle acts as a parachute, while the fly sinks to the bottom.