Notonectidae

（重定向自Notonectoidea）

Backswimmer (Family Notonectidae) from the Clam River near Webster, Wisconsin (Burnett County). Aug. 1, 2015.

Notonectidae is a cosmopolitan family of aquatic insects in the order Hemiptera, commonly called Backswimmers because they swim upside down. The Common Backswimmer, Notonecta glauca, is widespread in the United Kingdom, where it is known as the greater water boatman, and in Europe.

单词	Notonectoidea
释义	Notonectoidea 英语百科 Notonectidae （重定向自Notonectoidea） Notonectidae is a cosmopolitan family of aquatic insects in the order Hemiptera, commonly called Backswimmers because they swim upside down. The Common Backswimmer, Notonecta glauca, is widespread in the United Kingdom, where it is known as the greater water boatman, and in Europe.
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