I am keyed into these little house builders at the moment. I guess I am just seeing a lot of them around in our stillwaters.  Almost without exception, they have built their houses of either weed fragments, or small pieces of grass stem. In his book “Presentation”, Gary Borger says that he “has had superb lake fishing” with caddis larva patterns, but amongst the  American literature in my library there doesn’t seem to be more than a passing references to these caddis dwelling in pieces of weed fibre and grass. In “The nymph fly tyers manual” by Randall Kaufman, one