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Osobenus yakimae Stonefly Nymph Pictures

 This nymph keys out to Osobenus yakimae, and a comparison of the markings with a specimen on flyfishingentomology.com (http://www.flyfishingentomology.com/WAStoneflyDescription.php?Fa=Perlodidae&Ge=Osobenus) provides a good verification.

This stonefly was collected from the South Fork Snoqualmie River on June 13th, 2019 and added to Troutnut.com on June 14th, 2019.


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