The Breadcrust is an old Colorado pattern developed by Ed Rolka. This fly is a bit obscure these days, as Ed has long retired from tying them commercially for the metro area shops. When Ed retired he turned the business over to South Platte Sage and commercial tyer, Pat Dorsey. Producing this fly was one of the keys that unlocked the doors to the industry for Pat, and the rest has become history!
The Breadcrust is really a pretty simple fly, but the devil is in the detailed preparation of the grouse tail feathers. Ruffed grouse tails have become a bit hard to find in recent years, but I have a line on where to get some these days (thanks, T.J.!).
My best guess at what the Breadcrust imitates would be a cased caddis larva. But as I’ve said before, I never worry about what the fish thought was on the end of my line, as long as he eats it! The Breadcrust falls squarely within this description and I’m not one to argue with happy fish.