alderfly

al·der·fly

A5193200 (ôl′dər-flī′)n. Any of various insects of the family Sialidae, having two pairs of dark many-veined wings, long antennae, and aquatic larvae.

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[Probably so called because the mature insects can be found resting on foliage in the moist habitats near lakes and streams where alders typically grow.]

alderfly

(ˈɔːldəˌflaɪ) n (Animals) any of various neuropterous insects of the widely distributed group Sialoidea, such as Sialis lutaria, that have large broad-based hind wings, produce aquatic larvae, and occur near water

Thesaurus

Noun

1.

alderfly - dark-colored insect having predaceous aquatic larvaealder fly, Sialis lutarianeuropteran, neuropteron, neuropterous insect - insect having biting mouthparts and four large membranous wings with netlike veinsgenus Sialis, Sialis - type genus of the Sialidae

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