Tied here as a hydropsyche; change color/size to suit your needs.
hook ? Dai Riki 320 #16
thread - MFC 8/0 sand
body ? Zelon dubbing hydropsyche
wing - mallard flank
hackle - brown cast grizzly
Part 1
mash barb, start thread at 2/3 mark, wrap to point above barb
dub thread/dub body to 2/3 mark
prep mallard flank (strip fluff off the base, hold feather by tip; stroke rest of fibers to the rear)
measure (wing tip gap width past the butt); tie in/trim stem
tie in hackle; wrap, tie off/trim, half hitch x 2, SHHAN