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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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Mayfly Genus Cinygma (Western Light Cahill)

This uncommon Western genus is closely related to Cinygmula. It rarely provides good hatches.

Where & when

Time of year : April through September

Genus Range

Hatching behavior

These mayflies emerge in the surface flim.

Nymph biology

Current speed: Slow

Specimens of the Mayfly Genus Cinygma

2 Male Spinners
1 Female Spinner
1 Nymph

Discussions of Cinygma

Cinygma mayflies
2 replies
Posted by Bnewell on Jul 15, 2011
Last reply on Jul 20, 2011 by Entoman
Perhaps one reason Cinygma mayflies do not create much interest for fishermen is because of their habit. They seem to prefer these small headwater streams, often streams without trout.

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Mayfly Genus Cinygma (Western Light Cahill)

Genus Range
Common Name
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