Artistic view of a Male Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Adult from the Gallatin River in Montana

Salmonflies
Pteronarcys californica

The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.

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Tricorythodes (Trico) Mayfly Nymph Tricorythodes (Trico) Mayfly Nymph

Dorsal view of a Tricorythodes (Leptohyphidae) (Trico) Mayfly Nymph from Mystery Creek #308 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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Female Ephemerella tibialis (Little Western Dark Hendrickson) Mayfly Dun Pictures

I'm fairly confident calling this dun Ephemerella tibialis because it emerged from one of several similar nymphs in my bucket, which I was able to ID with quite a bit of certainty. However, it looks very different from the other duns I currently have listed, which makes me rethink their IDs.

Ruler view of a Female Ephemerella tibialis (Ephemerellidae) (Little Western Dark Hendrickson) Mayfly Dun from the East Fork Big Lost River in Idaho The smallest ruler marks are 1 mm.

Lateral view of a Female Ephemerella tibialis (Ephemerellidae) (Little Western Dark Hendrickson) Mayfly Dun from the East Fork Big Lost River in Idaho

Female Ephemerella tibialis (Ephemerellidae) (Little Western Dark Hendrickson) Mayfly Dun from the East Fork Big Lost River in Idaho

Dorsal view of a Female Ephemerella tibialis (Ephemerellidae) (Little Western Dark Hendrickson) Mayfly Dun from the East Fork Big Lost River in Idaho

Ventral view of a Female Ephemerella tibialis (Ephemerellidae) (Little Western Dark Hendrickson) Mayfly Dun from the East Fork Big Lost River in Idaho

This mayfly was collected from the East Fork Big Lost River in Idaho on August 3rd, 2020 and added to Troutnut.com by Troutnut on August 18th, 2020.

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