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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.

The Middle Fork of the Koyukuk River in Alaska

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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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Updates from June 18, 2009

Updates from June 18, 2009

Closeup insects by Bnewell from Murphy Lake in Montana

Procloeon pennulatum (Tiny Sulphur Dun) Mayfly Nymph

Procloeon pennulatum (Baetidae) (Tiny Sulphur Dun) Mayfly Nymph from Murphy Lake in Montana

This fragile nymph is easily damaged during sampling making identification more difficult.

Collected June 18, 2009 from Murphy Lake in Montana

Added by Bnewell on June 26, 2011

Collected June 18, 2009 from Murphy Lake in Montana and added by Bnewell on June 26, 2011

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