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Quick evening trip to the South Fork Snoqualmie

By Troutnut on July 20th, 2019
My wife and I drove up to the nearest trout stream for some quick evening fishing. I hoped to put her on some fish in the pools that allowed easier casting, but they seemed oddly devoid of fish. The ones I caught were rising sporadically, tight against cover that would snag most flies and required precise presentation. Retention is allowed on this stream, so I think maybe the easy pools got fished out.

Little green stoneflies (likely Alloperla) were common in the air in this fast-water reach, and I saw several on the water too.

Photos by Troutnut from the South Fork Snoqualmie River in Washington

 From the South Fork Snoqualmie River in Washington.
Date TakenJul 20, 2019
Date AddedJul 22, 2019
AuthorTroutnut
CameraNIKON 1 AW1
Pretty little coastal cutthroat from the South Fork. From the South Fork Snoqualmie River in Washington.
Pretty little coastal cutthroat from the South Fork.
Date TakenJul 20, 2019
Date AddedJul 22, 2019
AuthorTroutnut
CameraNIKON 1 AW1

Closeup insects by Troutnut from the South Fork Snoqualmie River in Washington

Male Calineuria californica (Golden Stone) Stonefly AdultMale Calineuria californica (Golden Stone) Stonefly Adult View 15 PicturesA few of these larger stoneflies were fluttering around the South Fork on an evening dominated by much smaller species.

This one has been difficult to identify. I can't spot any of the gill remnants characteristic of Perlidae, but the wing venation (Venation: The pattern in which the veins on the wings of an insect are arranged. It is usually one of the most useful identifying characteristics.) seems to point in that direction. I tried keying it out as Perlodidae but arrived at Isoperla, every western species of which has significantly smaller bodies than this one.

Edit: See forum comments for a likely correct identification.
Collected July 20, 2019 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on July 22, 2019

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