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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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Female Attenella margarita (Little Western Blue-Winged Olive) Mayfly Dun Pictures

I found this dun unusually late in the year for anything in the Ephemerellidae family in the East. It's also small for that family.

This mayfly was collected from Willowemoc Creek in New York on September 4th, 2006 and added to Troutnut.com by Troutnut on October 3rd, 2006.

Discussions of this Dun

ID on this little olive?
3 replies
Posted by Troutnut on Oct 3, 2006
Last reply on Oct 4, 2006 by GONZO
My Ephemerellidae keys are pretty much garbage when it comes to identifying female duns. I'm wondering if anybody has any insight on this one based on personal experience.

There can't be all that many tiny olive Ephemerellids hatching in September. My tentative guess would be Serratella.

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Female Attenella margarita (Little Western Blue-Winged Olive) Mayfly Dun Pictures

» Genus
» Species margarita (Little Western Blue-Winged Olives)
Collection details
Location: Willowemoc Creek, New York
Date: September 4th, 2006
Added to site: October 3rd, 2006
Author: Troutnut
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