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Male Cinygmula (Dark Red Quills) Mayfly Spinner Pictures

 I'm unsure of the ID on this one; keys put it closest to Cinygmula reticulata, but I'm very doubtful of the species and not positive on the genus. Epeorus is another possibility, but I don't know which species it would be.

This one was collected in association with a female dun probably of the same species.

This mayfly was collected from the South Fork Stillaguamish River on July 1st, 2017 and added to on July 2nd, 2017.

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