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Closeup insects from the South Fork Snoqualmie River

Page:123
Ephemerella excrucians (Pale Morning Dun) Mayfly NymphEphemerella excrucians (Pale Morning Dun) Mayfly Nymph View 5 Pictures
Collected June 16, 2018 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on June 18, 2018
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 flyfishingentomology.com (http://www.flyfishingentomology.com/WAStoneflyDescription.php?Fa=Perlodidae&Ge=Osobenus) provides a good verification.
Collected June 13, 2019 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on June 14, 2019
Rhyacophila (Green Sedges) Caddisfly LarvaRhyacophila (Green Sedges) Caddisfly Larva View 11 Pictures
Collected June 13, 2019 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on June 14, 2019
Baetis (Blue-Winged Olives) Mayfly NymphBaetis (Blue-Winged Olives) Mayfly Nymph View 5 Pictures
Collected June 13, 2019 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on June 14, 2019
Ameletus (Brown Duns) Mayfly NymphAmeletus (Brown Duns) Mayfly Nymph View 8 Pictures
Collected June 13, 2019 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on June 14, 2019
Limnephilidae (Northern Caddisflies) Caddisfly LarvaLimnephilidae (Northern Caddisflies) Caddisfly Larva View 15 Pictures
Collected June 13, 2019 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on June 15, 2019
Cinygmula (Dark Red Quills) Mayfly NymphCinygmula (Dark Red Quills) Mayfly Nymph View 8 Pictures
Collected June 13, 2019 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on June 14, 2019
Hesperoperla pacifica (Golden Stone) Stonefly NymphHesperoperla pacifica (Golden Stone) Stonefly Nymph View 13 Pictures
Collected March 19, 2019 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on June 14, 2019
Drunella grandis (Western Green Drake) Mayfly NymphDrunella grandis (Western Green Drake) Mayfly Nymph View 10 Pictures
Collected June 16, 2018 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on June 18, 2018
Female Pictetiella expansa Stonefly AdultFemale Pictetiella expansa Stonefly Adult View 12 PicturesBased on photos, this specimen seems to key out (using Merritt & Cummins 4th Edition) to Pictetiella expansa, but some of the characteristics aren't 100 % clear. However, that species is listed as occurring near Puget Sound and the head markings are similar to (albeit not a perfect match for) those of a male from Colorado in the scientific literature here: https://www.researchgate.net/figure/Head-and-pronotum (Pronotum: The top of the insect prothorax.)-dorsal (Dorsal: Top.)-Pictetiella-expansa-Boulder-Co-Colorado-North-Fork-Middle_fig1_315373449
Collected June 16, 2018 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on July 3, 2018
Page:123

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