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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 Pycnopsyche guttifera (Limnephilidae) (Great Autumn Brown Sedge) Caddisfly Larva from the Yakima River in Washington
This specimen appears to be of the same species as this one collected in the same spot two months earlier. The identification of both is tentative. This one suffered some physical damage before being photographed, too, so the colors aren't totally natural. I was mostly photographing it to test out some new camera setting idea, which worked really well for a couple of closeups.
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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Ephemerella aurivillii Mayfly Nymph Pictures

Ephemerella aurivillii (Ephemerellidae) Mayfly Nymph from the Chena River in Alaska
Ephemerella aurivillii (Ephemerellidae) Mayfly Nymph from the Chena River in Alaska
Ephemerella aurivillii (Ephemerellidae) Mayfly Nymph from the Chena River in Alaska
Ephemerella aurivillii (Ephemerellidae) Mayfly Nymph from the Chena River in Alaska
Dorsal view of a Ephemerella aurivillii (Ephemerellidae) Mayfly Nymph from the Chena River in Alaska
Ephemerella aurivillii (Ephemerellidae) Mayfly Nymph from the Chena River in Alaska
Ephemerella aurivillii (Ephemerellidae) Mayfly Nymph from the Chena River in Alaska

This mayfly was collected from the Chena River in Alaska on May 10th, 2008 and added to Troutnut.com by Troutnut on April 20th, 2011.


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Ephemerella aurivillii Mayfly Nymph Pictures

Collection details
Location: Chena River, Alaska
Date: May 10th, 2008
Added to site: April 20th, 2011
Author: Troutnut
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