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Lateral view of a Female Hexagenia limbata (Ephemeridae) (Hex) Mayfly Dun from the Namekagon River in Wisconsin
Hex Mayflies
Hexagenia limbata

The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.

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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Male Cinygmula tarda Mayfly Dun Pictures

For details about the tentative identification of this male dun, see the page for associated male spinner, captured from a mating swarm in the same location and at the same time as this dun was emerging.

Lateral view of a Male Cinygmula tarda (Heptageniidae) Mayfly Dun from the Cedar River in Washington
Male Cinygmula tarda (Heptageniidae) Mayfly Dun from the Cedar River in Washington
Dorsal view of a Male Cinygmula tarda (Heptageniidae) Mayfly Dun from the Cedar River in Washington
Ventral view of a Male Cinygmula tarda (Heptageniidae) Mayfly Dun from the Cedar River in Washington
Ruler view of a Male Cinygmula tarda (Heptageniidae) Mayfly Dun from the Cedar River in Washington The smallest ruler marks are 1 mm.

This mayfly was collected from the Cedar River in Washington on June 30th, 2021 and added to Troutnut.com by Troutnut on July 2nd, 2021.


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Male Cinygmula tarda Mayfly Dun Pictures

Collection details
Location: Cedar River, Washington
Date: June 30th, 2021
Added to site: July 2nd, 2021
Author: Troutnut
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