Isoperla fusca (Yellow Sally) Stonefly Nymph Pictures

Classification

This specimen keys to Isoperla fusca using the key in Szczytko & Stewart 1979, but some species of Isoperla weren't represented there.

This stonefly was collected from the Yakima River on April 9th, 2021 and added to Troutnut.com on April 12th, 2021.

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The row of stout setae along the back of the head (anterior of the occiput) on this specimen was relevant to the species ID.

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