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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.

Lateral view of a Clostoeca disjuncta (Limnephilidae) (Northern Caddisfly) Caddisfly Larva from the Yakima River in Washington
This one was surprisingly straightforward to identify. The lack of a sclerite at the base of the lateral hump narrows the field quite a bit, and the other options followed fairly obvious characteristics to Clostoeca, which only has one species, Clostoeca disjuncta.
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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Drunella coloradensis (Small Western Green Drake) Mayfly Nymph Pictures

Ruler view of a Drunella coloradensis (Ephemerellidae) (Small Western Green Drake) Mayfly Nymph from Mystery Creek #199 in Washington The smallest ruler marks are 1 mm.
Drunella coloradensis (Ephemerellidae) (Small Western Green Drake) Mayfly Nymph from Mystery Creek #199 in Washington
Dorsal view of a Drunella coloradensis (Ephemerellidae) (Small Western Green Drake) Mayfly Nymph from Mystery Creek #199 in Washington
Ventral view of a Drunella coloradensis (Ephemerellidae) (Small Western Green Drake) Mayfly Nymph from Mystery Creek #199 in Washington
Drunella coloradensis (Ephemerellidae) (Small Western Green Drake) Mayfly Nymph from Mystery Creek #199 in Washington

This mayfly was collected from Mystery Creek #199 in Washington on July 28th, 2019 and added to Troutnut.com by Troutnut on July 30th, 2019.


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Drunella coloradensis (Small Western Green Drake) Mayfly Nymph Pictures

Collection details
Location: Mystery Creek #199, Washington
Date: July 28th, 2019
Added to site: July 30th, 2019
Author: Troutnut
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