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Gray-Winged Blue Duns

Scientific Name
MatchScientific Name
*Caenis amica

This common name refers to only one species.

Mayfly Species Caenis amica

These are very rarely called Gray-Winged Blue Duns.
This is the most common Caenis species in our trout streams. It is often found in angling books under a former name, Caenis simulans. Trout occasionally feed on it selectively.
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