English edit

 
An adult alderfly of the species Sialis lutaria

Etymology edit

alder +‎ fly

Pronunciation edit

Noun edit

alderfly (plural alderflies)

  1. A member of any one of the 66 species of the family Sialidae 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 edit

  • (megalopteran insect): orl fly (angling)

Translations edit

References edit