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stonefly

American  
[stohn-flahy] / ˈstoʊnˌflaɪ /

noun

  • stoneflies
    plural
  1. 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.


stonefly British  
/ ˈstəʊnˌflaɪ /

noun

  1. 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

"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

Other Word Forms

Noun Inflected Forms

Etymology

Origin of stonefly

First recorded in 1400–50, stonefly is from late Middle English ston flie. See stone, fly 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Overlooking the orchards is “Indicator Species,” a silvery, 35-foot-tall kinetic sculpture of a Plecoptera nymph, commonly known as a stonefly, sculpted by Ela Lamblin, as a gathering point for communal celebrations.

From Seattle Times Aug. 4, 2023

Experts say they also worry about the giant stonefly, whose presence in streams is a sign of high water quality.

From Washington Post Oct. 22, 2021

Without any new evidence of its survival in the River Dee, the scarce yellow sally stonefly would be declared locally extinct, Mr. Macadam said; it already had vanished from an assortment of European countries.

From New York Times Feb. 24, 2020

"The Environment Agency, as it was then known, were carrying out regular sampling of the river when they stumbled across this stonefly," said Clare Dinham, of conservation charity Buglife.

From BBC Jan. 24, 2020

Even in the second year after DDT enters a stream, a foraging salmon parr would have trouble finding anything more than an occasional small stonefly.

From "Silent Spring" by Rachel Carson

Crucially, the data show that families that are particularly sensitive to river pollution, like mayflies, stoneflies and caddisflies, are recovering most strongly of all.

From Science Daily Oct. 4, 2023

With that insight, she got permission from King County to seed four creeks with caddisflies, mayflies, stoneflies and other species.

From Scientific American Apr. 1, 2022

Small, isolated populations of stoneflies reside in pristine brooks, where they are vulnerable to pollution and habitat fragmentation.

From New York Times Feb. 24, 2020

He collected additional stoneflies and reared the nymphs to adults, so Mr. Mauvisseau could isolate and sequence the DNA sequence of one of the specimens.

From New York Times Feb. 24, 2020

There would be no large stoneflies, no mayflies, no caddis flies.

From "Silent Spring" by Rachel Carson

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