It was posted in 2008 by Igor Balakersky at http://www.ulov.ru/forum/showflat.php?Cat=0&Number=207821&page=0&fpart=1&vc=1
I learned later that this pattern was developed by Japanese tenkara master Hiromishi Fuji.
In his post, Igor lauded the effectiveness of this fly. Obviously, I had to copy and try it. In the picture you can see that the body is made of dubbing with a grizzly hackle palmered at the head. You will also notice that underbody is golden tinsel . This trick is well known to tenkara tiers and increases the attractiveness of the flies. The colors on the pictures are distorted; I used a light olive thread and Lifecycle TM green dubbing for nymphs. The first tests elicited excellent results and since then I have hardly changed this pattern, though sometimes I tie it with a ginger hackle. I have successfully use that fly far.
Hook: TMC100SP BL or Knapek TM W series #14
Thread: light olive 6/0 UNI
Hackle: ginger rooster scalp
Body: dubbing
Underbody: golden tinsel UNI