alder fly

2 definitions found

alder fly - Collaborative International Dictionary of English v.0.48 :

  alderfly \al"der*fly`\, Alder fly \Al"der fly\
     1. Any of numerous dark-colored neuropterous insects of the
        genus Sialis or allied genera. They have predaceous
        aquatic larv[ae], which are used for bait.
        [Webster 1913 Suppl.]
  
     2. (Angling) An artificial fly with brown mottled wings, body
        of peacock harl, and black legs.
        [Webster 1913 Suppl.]

alder fly - WordNet (r) 2.1 (2005) :

  alder fly
      n 1: dark-colored insect having predaceous aquatic larvae [syn:
           alderfly, alder fly, Sialis lutaria]