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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Limnephilus (Summer Flier Sedge) Caddisfly Larva Limnephilus (Summer Flier Sedge) Caddisfly Larva

Case view of a Limnephilus (Limnephilidae) (Summer Flier Sedge) Caddisfly Larva from the Yakima River in Washington

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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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Sweltsa (Sallfly) Stonefly Nymph Pictures

This was by far the most abundant stonefly in my sample on May 14th.

Ruler view of a Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the South Fork Snoqualmie River in Washington The smallest ruler marks are 1 mm.

Dorsal view of a Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the South Fork Snoqualmie River in Washington

Ventral view of a Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the South Fork Snoqualmie River in Washington

Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the South Fork Snoqualmie River in Washington

False color image enhancing contrast on the setae on the tails. On the right tail (top), a few setae appear as double images due to an artifact of the focus stacking proces.

Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the South Fork Snoqualmie River in Washington

This stonefly was collected from the South Fork Snoqualmie River in Washington on May 14th, 2022 and added to Troutnut.com by Troutnut on May 16th, 2022.

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