The Biology and Immature Stages of the Caddisfly Genus Ceraclea in Eastern North America (Trichoptera: Leptoceridae)1

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Abstract
Life histories, descriptions of immature stages and a key for identifying the following species of Ceraclea (=Athripsodes, in part) caddisflies from Eastern North America are presented: alagma (Ross), alces (Ross), ancylus (Vorhies), aunulicornis (Stephens), arielles (Denning), cancellata (Betten), diluta (Hagen), excisa (Morton), flava (Banks), maculata (Banks), mentica (Walker), misca (Ross), neffi (Resh), nepha (Ross), nigronervosa (Retzius), punctata (Banks), resurgens (Walker), slossonae (Banks), spongillovorax (Resh), submacula (Walker), tarsipunctata (Vorhies), transversa (Hagen), and two species whose larvae were not definitely associated with an adult. The genus Ceraclea includes species whose larvae are detritus grazers, plant feeders, and predators of freshwater sponge. The larvae exhibit a variety of life cycles and different water quality tolerances.