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[stohn-flahy] /ˈstoʊnˌflaɪ/
noun, plural stoneflies.
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, especially bass and trout, which makes them popular as models for fishing flies.
Origin of stonefly
late Middle English
1400-50; late Middle English ston flie. See stone, fly2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for stonefly


noun (pl) -flies
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
Word Origin
C15: so called because its larvae live under stones in rivers
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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