The Shipo Claret Buzzer Barbless is an excellent, low-riding stillwater midge emerger in claret. Its Shipman's-style profile sits in the surface film, matching a chironomid at the vulnerable point of hatching.
Fish it on a floating line, either singly to rising trout or as the top fly in a light team. Leave it static in a ripple or retrieve with an extremely slow figure-of-eight. Fish it through likely water and wait for the line to tighten.