Antennae/tail Black and purple Krystal Flash + few strands bucktail (small bunch)
Legs Black/purple rubber or Sili Legs (4-6)
Body Black and purple craft-fur or EP fibre (small bunch)
Wing/back Purple Krystal Flash over the top (few strands)
Weedguard The bendback shank itself (point rides up) (-)
How to tie it
On the bendback hook (shank bent slightly up near the eye), tie in bead-chain or light lead eyes near the eye so the fly rides hook-point up and stays weedless.
At the bend, tie in a sparse shrimp 'nose'/antennae of black and purple Krystal Flash with a few strands of bucktail, extending past the bend.
Add two or three pairs of black/purple rubber legs so they splay to the sides.
Tie in a body clump of black and purple craft-fur or EP fibre and, using the bendback so the wing sits on top, sweep it back over the point to hide the hook and imitate the shrimp body.
Lay a few strands of purple Krystal Flash over the top as a back, then build a tapered head.
Whip finish at the eye and cement; the bendback profile makes it land soft and ride weed-free.