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Project Watershed Central New York

Dedicated to facilitating water resource education in Central New York

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Stonefly

Pollution-Intolerant
Stonefly
  • About 500 species in North America
  • Are found in cool, clean streams with high levels of dissolved oxygen
  • Develop in the stream for period of three months to three years • Are either predators or feed on fungi and bacteria from rotting leaves
  • Two long antennae
  • Two hair-like tails
  • Gills often located on or behind each leg
  • Six segmented legs on middle section of body
  • Each leg has two hooks on the end
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