Did anybody suggest the Whitlock Fox. Sq, nymph?
If not, I will.
Like the hare's ear and the simple muskrat glob nymph and several other fur-based nymphs, the Whitlock nymph is one of those flies that the rattier it looks, the better it works. That's a big plus in my view, because it means I can tie them somewhat sloppily and make believe that I intended to do so...
It's good with or without a bead (but not silver, which is useless) and with or without a wing case. Sizes 6-18.
I don't do photos online, but here is a pattern: http://www.flymartonline.com/modules.php?file=article&name=News&sid=295
I always carry at least 50 of them..