English

An adult alderfly of the species Sialis lutaria

Noun

alderfly ‎(plural alderflies)

1. A member of any one of the sixty-six species of the Sialidae family of megalopteran insects, each specimen of which has a body length not exceeding one inch and possesses long filamentous antennae and four large dark wings.
2. (fishing) An artificial fly with brown mottled wings, body of peacock harl, and black legs.

Synonyms

• (megalopteran insect): orl fly (angling)

Translations