Tie in the turkey fibres on the spine and then dub on more fur and wrap to form a large thorax . Pull the turkey over the back to form a wing case. Tie off and cut off excess . Whip finish and cement. A second good mayfly nymph pattern is the March Brown nymph.
T ie in a length of black monocord thread and then two to four strands of chocolate brown floss .
W rap the floss to the mid-point of the hook shank forming a tapered abdomen, fatter towards the eye, tie off and cut . W rap the monocord forward as a rib and tie off and cut . Form the thorax by wrapping the herl to the eye of the hook ensuring to leave enough space to tie off and form the head. Tie off and cut . Palmer the furnace hackle over the herl and tie off and cut .