Geehi beetle
One of the key elements of this fly that has been overlooked in many fly patterns I have seen id the choice of the front hackle. Make sure its a ‘cocky-y-bonddu’ type hackle i.e. a ginger hackle with a black centre. The black centre of the hackle when wound in touching turns to the eye of the hook extends the beetle body along the full length of the shank of the hook and I an confident that is one of the keys to the success of this fly.