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willow fly

noun
  1. a stonefly, Leuctra geniculata, of the English chalk streams, esteemed by trout and therefore by anglers
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Examples from the Web for willow fly

Historical Examples of willow fly

  • This fly is therefore omitted, and the Willow-fly and the Yellow-Sally only are described.

    Old Flies in New Dresses

    Charles Edward Walker

  • The Willow-fly, when it falls on the water, has its wings sometimes in one and sometimes in the other of these positions.

    Old Flies in New Dresses

    Charles Edward Walker