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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.

Dorsal view of a Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Yakima River in Washington
This species was fairly abundant in a February sample of the upper Yakima.
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 Ephemerella aurivillii Mayfly Dun Pictures

This dun hatched out in my aquarium from this nymph.

Female Ephemerella aurivillii (Ephemerellidae) Mayfly Dun from Nome Creek in Alaska
Lateral view of a Female Ephemerella aurivillii (Ephemerellidae) Mayfly Dun from Nome Creek in Alaska
Dorsal view of a Female Ephemerella aurivillii (Ephemerellidae) Mayfly Dun from Nome Creek in Alaska
Ventral view of a Female Ephemerella aurivillii (Ephemerellidae) Mayfly Dun from Nome Creek in Alaska
Ruler view of a Female Ephemerella aurivillii (Ephemerellidae) Mayfly Dun from Nome Creek in Alaska The smallest ruler marks are 1 mm.

This mayfly was collected from Nome Creek in Alaska on July 10th, 2011 and added to Troutnut.com by Troutnut on July 13th, 2011.


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Female Ephemerella aurivillii Mayfly Dun Pictures

Collection details
Location: Nome Creek, Alaska
Date: July 10th, 2011
Added to site: July 13th, 2011
Author: Troutnut
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