My buddy handed me this fly recently. It is store bought, but he can't remember what fly shop or where. You can see in the pix that it is a bit worse for wear. I nymphed it very successfully. It was the upper fly of a two fly rig. this is my last one and I want to tie more. I might be able to figure it out, but I'm hoping someone can identify it and pass on the perfect recipe. It is tiny, the one in the picture is a #20 I'm pretty sure - check out those pretty mono eyes! The wings on the side flare out then curve back to hook - I'm not sure if they act as wing pads of the pupa or if they represent a thorax... hmmm.