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Dryopidae is a family of beetles, commonly named long-toed water beetles, in the superfamily Byrrhoidea. It was described by Billberg in 1820.〔(【引用サイトリンク】title=Dryopidae Billberg, 1820 )〕 ==Description== Long-toed water beetles are named for their extended claws. Adults have dense hairs, which allow the beetles to breathe while underwater. The flight muscles of the females weaken as they age. When the pupae complete the imago stage of their life cycle, they move towards running water, and may be attracted to lights.〔 Despite being referred to as aquatic insects, the beetles are unable to swim,〔 clinging to detritus that float. All long-toed water beetles feed on plants that are in the water, but the larvae also prey on small animals and most of them are terrestrial. ''Stygoparnus'' is the only genus in the family in which both the larvae and adults are aquatic.〔〔 Genera of the family closely resemble riffle beetles, but the antennae are different from the long-toed water beetles, looking similar to clubs. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Dryopidae」の詳細全文を読む スポンサード リンク
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