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.

Stream photos

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Perlodidae (Springflies and Yellow Stones) Stonefly Nymph Perlodidae (Springflies and Yellow Stones) Stonefly Nymph

Artistic view of a Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington

This one seems to lead to Couplet 35 of the Key to Genera of Perlodidae Nymphs and the genus Isoperla, but I'm skeptical that's correct based on the general look. I need to get it under the microscope to review several choices in the key, and it'll probably end up a different Perlodidae.

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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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Male Ameletus oregonensis (Brown Dun) Mayfly Spinner Pictures

This mayfly was collected from Hungry Horse Creek in Montana on May 12th, 2005 and added to Troutnut.com by Bnewell on June 28th, 2011.

Discussions of this Spinner

subnotatus?

Posted by GONZO on Aug 25, 2011

Last reply on Aug 25, 2011 by GONZO

Might this specimen have been mislabeled? It appears to be a better match for A. subnotatus than A. oregonensis. The adult key in Zloty (1996) distinguishes A. subnotatus by the dark margins on the crossveins ("giving them a speckled appearance and forming three or four larger dark patches") and dark suffusion only at the base of the hindwing (Fig. 44B). A. oregonensis is supposed to lack the dark margins on the crossveins and have dark suffusion at the base of both the forewings and the hindwings (Fig. 44A). Table 1 in Zloty and Pritchard (1997) seems to qualify this slightly and describes oregonensis females "with brown shadings around some cross-veins but without brown patches."

McCafferty and Newell (2008) contains this record:

Ameletus subnotatus Eaton.
FLATHEAD COUNTY: Hungry Horse Creek, (A) 12-V-2005, R. Newell [FLBS]

Are these photos of that specimen?

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