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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Eurylophella (Chocolate Duns) Mayfly Nymph Pictures

Looking at this specimen under a microscope revealed prominent sharp abdominal tubercles. Also, abdominal segment 9 is distinctly longer than abdominal segment 8, meaning this is definitely a Eurylophella nymph.

This mayfly was collected from unknown in Wisconsin on February 7th, 2004 and added to Troutnut.com by Troutnut on January 25th, 2006.

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Taxonomy

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

» Order Ephemeroptera (Mayflies)

» Family Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs)

» Genus Eurylophella (Chocolate Duns)

SalmonfliesPteronarcys californica

Eurylophella (Chocolate Duns) Mayfly Nymph Pictures

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Taxonomy

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Salmonflies
Pteronarcys californica