Leslie Reid, The sociology of nature, Londres, Penguin, 1962, p.62.

….moth , ensconced within dry pockets composed of leaf-fragments that they themselves have detached and shaped to their requirements, caddis-larvae in tubular cases , as well as great numbers of minutes forms discernible only with lens or microscope.Yet another micro-habitat coming within the orbit of the pond is the mud at its edge, where buried head-downward in the mire and waving their tails so as…