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> > Anyone want to weigh on on the ID here?

The Specimen

Baetidae (Blue-Winged Olives) Mayfly SpinnerBaetidae (Blue-Winged Olives) Mayfly Spinner View 12 PicturesThis species is probably in Centroptilum, Cloeon, or Procloeon. I captured this spinner on the same night as a dun which is probably of the same species.
Collected August 9, 2006 from the West Branch of Owego Creek in New York
Added to Troutnut.com by on August 11, 2006

The Discussion

TroutnutAugust 11th, 2006, 6:01 pm
Administrator
Bellevue, WA

Posts: 2707
I can't follow the key in Merritt & Cummins very far since it's not a male spinner. The sharp costal process could be a good hint. Anybody know which genus or species this is?
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

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