The Northern California Fly Fishing Board

From the writeup
Instead of riding high, though, this fly will settle down in the film and its shiny body fibres, soft hackle, and CDC wing will give a convincing impression of a caddis in the process of developing into an adult.
I rewatched Bugs of the Underworld tonight. Ralph says...
"The October Caddis is perhaps the most famous of the terrestrial emergers"

so... whatever this fly is doing in the film, emerging is not it... Have any thoughts?

Maybe this better fits the category of "cripple", although I greatly dislike that term. Plenty of bugs get stuck in between stages -- having a pattern that imitates them is just another good tool in the old box.

Thanks TD,
Maybe a spent or an adult. I can see doing something similar for other caddis.

I hit one of the rivers that has these last weekend and got to see them for the first time. Fish were a bit shy or educated or pressured but each of us managed a handful over the weekend. Takes on dries were generally quick after the fly had landed and toward evening. (used a stimi or chernobyl ant with a dropper as well)

Amazing bug in an amazing setting. Here's a little homage to the lifecycle of this fella (that fish came to your fly btw )

picture attachment issues...