Weighing the hook.
Tie the monofilament and the flashabou strand and use the thread to cover the tips and make the underbody. So as not to thicken the abdomen, it’s better to paint the back white rather than using thread, this can be done with nail polish. Let it dry before placing the dubbing.
Place not too much dubbing on the thread and make the abdomen, right past the middle of the hook towards the hook eye.
Make the hot spot with more dubbing.
Spiral the flashabou strand, cut the remnant and tie the thin skin strap. It should cover the back and sides, no more.
Set the strap and tie it tight to make the larva sections. Cut then the strap in the middle so two little tips remain and act as the tail.
Finished fly. Use black or brown dubbing to make the tórax, from the hook eye to the back and all the way back to the eye where we finish. Use a black marker for the head and some cianoacrilate. Use a wire brush to loosen thorax and abdomen hair, just a bit, for it must sink fast.