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Stoneflies and Snowflieswhat’s this bug?
We were interested to see a couple of this bug crawling on top of the snow on March 15 near Niagara Falls Ontario in a provincial park where there are horseback riders and dog walkers. Is it a common insect?
Nancy Cook

Hi Nancy,
Winter Stoneflies, known as Snowflies, are not rare, but are very seasonal. They are one of the few insects that are active when there is still snow on the ground.
Related Posts
- Golden Stonefly (April 3, 2008)
- Winter Stonefly or Snowfly (February 10, 2008)
- Snowfly (December 20, 2006)
- Wingless Winter Crane Fly or Snow Fly (December 30, 2008)
- Winter Moth Larvae (May 18, 2009)





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