Supposedly, a sunken Grey Drake spinner.

hook - Dai Riki 280 #10
bead - 3/32 black
thread - Danville 6/0 black
tail/abdomen - teal flank (gadwall in original)
rib- Danville Flymaster Plus black
underwing - Congo Hair white
wing - Krystal Flash pearl
thorax - Ice Dub peacock black
hackle - partridge

Part 1

mash barb; slide bead on, jam a few wraps of non-tox in the backside




start thread, tie in rib, wrap to bend




measure (shank length) some teal flank fibers; tie in, fold butts back






wrap teal forward; tie off/trim




counterwrap rib; tie off/trim




tie in a clump of CH at 2/3 mark, tips to barb




tie in some KF; trim a bit longer than the underwing