Distinguishing characteristics - The aquatic pyralid moths have prolegs (Fig. B). The prolegs on abdominal segments 3-6 and 10 have crochets (Fig. C). They lack both an anal fork and an anal horn on the terminal abdominal segment (Fig. D). A larvae and case are pictured in Figure E.
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Tolerance Value - 5
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Feeding Group - Shredder
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Notes - There are 148 species of Pyralidae in North America. Overwintering is done as larva. They live in lentic habitats, with a few exceptions; and are herbivores. The size of the Aquatic Pyralid Moths at maturity is 3-35 mm.
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