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Lateral view of a Male Baetis (Baetidae) (Blue-Winged Olive) Mayfly Dun from Mystery Creek #43 in New York
Blue-winged Olives
Baetis

Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.

27" brown trout, my largest ever. It was the sub-dominant fish in its pool. After this, I hooked the bigger one, but I couldn't land it.
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Female Hesperoperla pacifica (Golden Stone) Stonefly Adult Pictures

My blurry photo at first makes it look like there might be a distinct notch in the subgenital plate of this specimen, but that's not the case -- just a poor photo. That's important to the ID.

Lateral view of a Female Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Adult from the Gallatin River in Montana
Female Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Adult from the Gallatin River in Montana
Female Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Adult from the Gallatin River in Montana
Dorsal view of a Female Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Adult from the Gallatin River in Montana
Female Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Adult from the Gallatin River in Montana
Female Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Adult from the Gallatin River in Montana
Ruler view of a Female Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Adult from the Gallatin River in Montana The smallest ruler marks are 1 mm.
Ventral view of a Female Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Adult from the Gallatin River in Montana
Female Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Adult from the Gallatin River in Montana
Female Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Adult from the Gallatin River in Montana
Female Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Adult from the Gallatin River in Montana
Female Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Adult from the Gallatin River in Montana
Artistic view of a Female Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Adult from the Gallatin River in Montana

This stonefly was collected from the Gallatin River in Montana on July 2nd, 2019 and added to Troutnut.com by Troutnut on July 18th, 2019.


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Female Hesperoperla pacifica (Golden Stone) Stonefly Adult Pictures

Collection details
Location: Gallatin River, Montana
Date: July 2nd, 2019
Added to site: July 18th, 2019
Author: Troutnut
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