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Stonefly Genus Osobenus

Pictures Below

Pictures of 1 Stonefly Specimen in the Genus Osobenus:

Osobenus yakimae Stonefly NymphOsobenus yakimae  Stonefly Nymph View 6 PicturesThis nymph keys out to Osobenus yakimae, and a comparison of the markings with a specimen on ( provides a good verification.
Collected June 13, 2019 from the South Fork Snoqualmie River in Washington
Added to by Troutnut on June 14, 2019

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