John Janovy, Dunwoody Pond, Reflections on the High Plains Wetlands and the Cultivation of Naturalists, New York, St Martin’s Press, 1994, p. 59-60.

« The caddis flies are pretty impressive, though. » She pauses. « Speaking of insects. » As part of her courses requirements, Laura has started a Small project on the ciliiated protozoa that live on the surfaces of caddis fly larvae. The larva build elaborate tubular houses out of sticks or stones, depending on the species. I’d always wondered whether the filter feeding protozoa were confined to certain parts of the larva’s body, a distribution that might be related to the water currents passing through the house. The caddis flies Laura’s chosen live in clear springfed streams flowing out of the Sandhills and into the North Plate River.