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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.

Dorsal view of a Epeorus albertae (Heptageniidae) (Pink Lady) Mayfly Nymph from the East Fork Issaquah Creek in Washington
This specimen keys to the Epeorus albertae group of species. Of the five species in that group, the two known in Washington state are Epeorus albertae and Epeorus dulciana. Of the two, albertae has been collected in vastly more locations in Washington than dulciana, suggesting it is far more common. On that basis alone I'm tentatively putting this nymph in albertae, with the large caveat that there's no real information to rule out dulciana.
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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Empididae True Fly Adult Pictures

I'm not fully confident in the ID on this one. I couldn't see for sure that there are two equal pads under the tarsal claws instead of three, but it seems that way. The antennae are 4-segmented, although I'm not sure if the last segment counts as a "segment" rather than a style@ or arista sticking off the third segment. It has three ocelli. The key characteristics generally point to Empididae except "Vein R4+5 usually branched." That vein certainly isn't branched in this specimen, but the key does say "usually."

Ventral view of a Empididae True Fly Adult from the South Fork Snoqualmie River in Washington
Lateral view of a Empididae True Fly Adult from the South Fork Snoqualmie River in Washington
Dorsal view of a Empididae True Fly Adult from the South Fork Snoqualmie River in Washington
Empididae True Fly Adult from the South Fork Snoqualmie River in Washington
Empididae True Fly Adult from the South Fork Snoqualmie River in Washington
Empididae True Fly Adult from the South Fork Snoqualmie River in Washington
Ruler view of a Empididae True Fly Adult from the South Fork Snoqualmie River in Washington The smallest ruler marks are 1 mm.
Empididae True Fly Adult from the South Fork Snoqualmie River in Washington
Empididae True Fly Adult from the South Fork Snoqualmie River in Washington
Empididae True Fly Adult from the South Fork Snoqualmie River in Washington

This true fly was collected from the South Fork Snoqualmie River in Washington on May 22nd, 2022 and added to Troutnut.com by Troutnut on May 24th, 2022.


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Empididae True Fly Adult Pictures

Collection details
Location: South Fork Snoqualmie River, Washington
Date: May 22nd, 2022
Added to site: May 24th, 2022
Author: Troutnut
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