This female spinner was deceased when photographed, so the posture is unnatural, but it was a substantial hatch and clearly worth imitating (with wet flies to imitate the sunken ovipositing females) so I went ahead with the photos.
It was collected in association with a male spinner.
This mayfly was collected from Silver Creek on September 4th, 2020 and added to Troutnut.com on September 18th, 2020.
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