This follow up video from the snow shoe rabbit foot prep video, shows how to position and measure the wing and tail for a mayfly dun. Also using the snow shoe underfur for dubbing the body. This pattern can be used for just about any medium and large sized mayflies.
Hook: Mustad Heritage R43 #123
Tying thread: Sheer 14/0 Grey
Wing: Show shoe hare
Tail: Snow shoe hare
Dubbing: Snow shoe hare
Rib: UNI Mono thread 3/0 Wine
Hackle: Silver Badger