A Guide to the Insects of the Coal Oil Point Reserve

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Last updated 08/15/2005
  Insects of Coal Oil Point > Guide >Plecoptera - Stoneflies

Plecoptera - Stoneflies

Immaturestoneflies (nymphs) are very common freshwater insects. They tend toprefer colder streams, and their presence and abundance is often usedas a measure of stream health. Adult stoneflies seldom feed, thoughthey are fed upon by a wide variety of aquatic animals and birds. Coldrunning water is in short supply at Coal Oil Point, and this lone adultstonefly was a somewhat surprising find. Its nymphs may live in themainly freshwater backdune pond to the west of our trapping site.

Stonefly Photos
(click to enlarge)


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