Funny name, killer fly
As it turned out, not only did the Poopah's outperform my tried and true caddis pupa patterns that evening, but I ended up fishing them during non-hatch situations later that year and did extremely well just nymphing with them. Since that time, these flies have held a standard spot on the varsity team of my fly boxes.
Including the video tutorial below, you'll see I tie these patterns now in several variations. So don't shoot me for not following the original pattern verbatim (the video is the closest to the original). Plus, those that know our style here at FFF, we don't pay a lot of attention to fly tying rules.
I tend to tie them in both bead-head and non-bead-head versions and I also prefer dubbing over Ostrich for the thorax. Depending on the color of the naturals, I typically vary about equally between the olive and the tan colored variations.
As far as the material list, I'll list out some of the variations I use, but again, you can use your favorite search engine to seek out the actual recipe from Mr. Fox.
Hook: Pictured above I use the Allen D102BL in a #14. However, feel free to use something like a TMC 2302 or other caddis or nymph hook
Thread: UTC Ultrathread Tan or Olive
Bead: 2.3 mm Tungsten or other
Body: Olive or Tan Vernille (or micro-chenille).
Under-Body: UTC Pearl Tinsel
Ribbing: UTC Ultrawire, BR, Green or Gold
Legs: Olive or Brown Partridge
Antennae: Wood duck or mallard flank
Thorax: Black or Brown Ostrich herl. I use dubbing, however. Color to match.