BF,
Ya, the tails are fly tails by Waspy
These are called Aric's worms, I've been tying then since Culprit worms were all the rage. I must say, with the new chenilles that are available the colors that I now can make are awesome. At one time, when I was attending collage in Mississippi, all I could find was Estaz at a fabric store 45 miles way.