I've been test driving this caddis emerger variant for a while now and can happily report that it works a treat. It came about when I tried to create an emerger pattern which would work on the Eden when my normal 'go-to' pattern the balloon caddis was refused (something which rarely happens on other rivers, I've found).
I aimed for 'busy but sparse' when viewed from below as I was concerned that the relatively heavy, winged profile of the Moser pattern might be a touch too bold on some occasions. But I still needed the pattern to be reliably buoyant and easily visible in near darkness This fly seems to fit the bill....and early signs are very encouraging indeed.
The Eden Caddis Emerger
Hook: B100 #14,16
Thread: mallard brown sheer
Rib: twisted flat gold
Dubbing: natural hare or fox squirrel
Hackle: dun grizzle
Wing post: yellow or white foam doubled forward and tied down like a thorax cover.