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Salmonflies
Pteronarcys californica

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

Ephemerella dorothea dorothea (Pale Evening Dun) Mayfly Nymph Pictures

I keyed this nymph carefully under a microscope to check that it's Ephemerella dorothea.

This mayfly was collected from Paradise Creek in Pennsylvania on May 29th, 2007 and added to Troutnut.com by Troutnut on June 4th, 2007.

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