I have been tying along a particular theme recently, that being nymphs with a V-Rib body and a tungsten bead. On this one I was focusing on getting a glowing translucence in the body: Place a 2.5mm black tungsten bead on a #14 or #16 nymph hook. Tie in a rough base (for grip) of bright yellow silk (70 denier used here) Tie in a tail of natural blonde squirrel tail, and use the tag end to build up the thorax a little , so securing the bead. Tie in a small bunch of cock pheasant tail fibres as