I thought some might be interested in the Solomon and Leiser pattern (The Caddis and the Angler, 1977). I read somewhere (not in this book) that the breadcrust originated as a wet fly pattern and was changed to a larval caddis pattern over time. Who knows if that is true, but you can kind of see the wet fly origins in this material list.
Hook: Mustad 37160 (They note that many use 3906 or 3399, standard wet fly)
Thread: black
Body: orange or green floss or wool
Rib: center stem of dark brown rooster feather
Hackle: soft webby grizzly
I finally managed to get a grouse skin and I'm looking forward to trying the pattern that GenCon posted.
Mike.