This 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.
This mayfly was collected from the West Branch of Owego Creek on August 9th, 2006 and added to Troutnut.com on August 11th, 2006.
This picture shows the shape of the costal process on the hind wing pretty well.
This false-color image of the clear wings shows all the veins.
Recent Discussions of this Spinner
Posted by Taxon
on Aug 11, 2006
Jason-ReplyAnyone want to weigh on on the ID here?
The single detached intercalaries in the fore wing would limit the choices to the genera you suggest. The sharply pointed costal projection and single longitudinal vein in the hind wing probably narrow it to a single species. Unfortunately, none of the Baetidae hind wing illustrations to which I have access show either that sharply pointed of a projection or the single longitudinal vein, let alone in combination with one another.
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?Reply
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