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Any of numerous insects of the order Plecoptera, having two pairs of membranous wings and long antennae, the nymphs of which often live under stones in streams. Adult and larval stoneflies are used as fishing bait. Also called plecopteran.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


n, pl -flies
(Animals) any insect of the order Plecoptera, in which the larvae are aquatic, living beneath stones, and the adults have long antennae and two pairs of large wings and occur near water
[C15: so called because its larvae live under stones in rivers]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014



n., pl. -flies.
any of numerous dull-colored primitive aquatic insects of the order Plecoptera, having a distinctive flattened body shape: a major food source for game fish.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.stonefly - primitive winged insect with a flattened bodystonefly - primitive winged insect with a flattened body; used as bait by fishermen; aquatic gilled larvae are carnivorous and live beneath stones
insect - small air-breathing arthropod
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
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On this rod, I usually tie a stonefly nymph and place the indicator eight to ten feet above the fly and close to the tip of a dyed fly line.
I made several casts of my black stonefly before realizing I was getting "strikes" but was too slow to react.
In an aquatic system, stonefly larvae have been shown to drive mayflies from the undersurface of stones and into exposed situations where they are more susceptible to fish (Soluk and Collins 1988).
He trims the Bro Bug with a juicy waxworm or small Northland Impulse Mayfly or Stonefly softbait.
For instance, studies conducted in natural stream habitats show that larval ephemeropterans increase drifting behavior in response to stonefly (plecoptera) predators, especially at night (Malmqvist and Sjostrom, 1987; Peckarsky, 1996).
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