willow fly

noun

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

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

willow fly

Examples from the Web for willow fly

Historical Examples

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

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