alderfly

	1.	Any of numerous dark-colored neuropterous insects of the genus Sialis or allied genera. They have predaceous aquatic larvæ, which are used for bait.
	2.	(Angling) An artificial fly with brown mottled wings, body of peacock harl, and black legs.

Noun

1.

alderfly - dark-colored insect having predaceous aquatic larvae Synonyms: alder fly, Sialis lutaria

alder fly, genus Sialis, neuropteran, neuropteron, neuropterous insect, Sialis, Sialis lutaria