Found Michael Snody's all pink version (specific to the South Fork Snake River) in Bruce Staples Flies for the Greater Yellowstone Area; neat use of LaFontaine's gas bubble for the thorax. Tied here in more traditional PMD colors.
hook - Dai Riki 320 #16
thread - Danville 6/0 pale yellow
rib - x-small wire copper
shuck - Congo Hair brown
tail/abdomen - pheasant tail
thorax - Superfine dubbing PMD
bubble - antron yarn
hackle - hen pale dun
Part 1
mash barb, start thread at 1/2 mark, tie in CH; fold over, tie in rib, wrap to bend, trim shuck (gap width past bend)
measure (shank length) some pt fibers; tie in, wrap to 1/2 mark, tie off/trim
counterwrap rib; helicopter end cover with thread
surround shank with a hank of antron yarn; tie in