Howard Cole's wonderwing stonefly. Tied here as a skwala; change color/size to meet your needs.
hook - Dai Riki 280 #10
thread - MFC 8/0 brown
egg sac - 2mm foam black
abdomen - Fly Rite quill gordon dubbing (makes a nice olivish/brown/yellow)
underwing - dun saddle wonderwing style
overwing/indicator - calftail chartreuse
legs - rubber medium brown
hackle - brown-dyed grizzly
Part 1
Mash down barb, start thread at 2/3 mark and wrap back to bend
tie in foam strip (1/2 gap width); fold over, brush a little super glue, and tie down tag end
dub thread, dub body
prep saddle feathers