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Order - MEGALOPTERA (Greek, megas = large; pteron = wing) Common Names: alderflies, dobsonflies, snakeflies Distribution: Best represented in temperate regions Description North America's two families of Megaloptera (Corydalidae and Sialidae), both with aquatic larvae, used to be included in the order Neuroptera. Shown here are the lotic fishfly Nigronia (resting on an alder branch) and the alderfly genus Sialis ( laying eggs on a sedge stem ) .   Click Here To Go to Back to Main Menu

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