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.

Stream photos

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Male Baetidae (Blue-Winged Olive) Mayfly Dun Male Baetidae (Blue-Winged Olive) Mayfly Dun

Lateral view of a Male Baetidae (Blue-Winged Olive) Mayfly Dun from Mystery Creek #308 in Washington

This dun emerged from a mature nymph on my desk. Unfortunately its wings didn't perfectly dry out.

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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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Baetisca obesa (Armored Mayfly) Mayfly Nymph Pictures

This is a neat, unusal view into the gills of a Baetisca nymph.

Baetisca obesa (Baetiscidae) (Armored Mayfly) Mayfly Nymph from the Neversink River (above reservoir) in New York

Baetisca obesa (Baetiscidae) (Armored Mayfly) Mayfly Nymph from the Neversink River (above reservoir) in New York

Artistic view of a Baetisca obesa (Baetiscidae) (Armored Mayfly) Mayfly Nymph from the Neversink River (above reservoir) in New York

Ruler view of a Baetisca obesa (Baetiscidae) (Armored Mayfly) Mayfly Nymph from the Neversink River (above reservoir) in New York The smallest ruler marks are 1 mm.

Dorsal view of a Baetisca obesa (Baetiscidae) (Armored Mayfly) Mayfly Nymph from the Neversink River (above reservoir) in New York

This mayfly was collected from the Neversink River (above reservoir) in New York on May 6th, 2007 and added to Troutnut.com by Troutnut on May 10th, 2007.

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