Neat fly; simple to tie, catches fish.

hook - Dai Riki 320 #16
thread - MFC 8/0 brown
egg sac - chenille small light olive
abdomen - muskrat
wing - partridge
hackle - brown/dun

mash barb, wrap thread back to bend

strip end off chenille and tie in

one wrap of chenille, tie off and trim

dub thread, dub body to 75% mark

tie in partridge; extend wing gap width past bend

tie in hackles

wrap hackle (did these one at a time, both at once works, too); tie off, trim, half hitch x2, SHHAN