Male Nixe inconspicua Mayfly Dun Pictures
Classification
Kingdom Animalia (Animals)
» Phylum Arthropoda (Arthropods)
» Class Insecta (Insects)
» Order Ephemeroptera (Mayflies)
» Family Heptageniidae (March Browns, Cahills, Quill Gordons)
» Genus Nixe
» Species inconspicua
I could not identify it by following a species key step by step, but I tentatively keyed it to the genus Nixe, and based on distribution maps and physical descriptions the most likely species is Nixe inconspicua.
This mayfly was collected from the Catskills on July 13th, 2005 and added to Troutnut.com on April 14th, 2006.

The ratio of segment lengths on the tarsus (Tarsus: The often multi-segmented outer leg section of an insect, which attached to the tibia.) of this dun is a helpful identifying characteristics.
CameraCanon EOS 20D
Recent Discussions of this Dun
Maybe Epeorus
Posted by Troutnut on Jul 5, 2006
I'll have to revisit the identification on this one. Originally the fore tarsal ratio made me think it's not Epeorus, but the unmarked wings, costal wing venation, and contiguous eyes now make me think otherwise.
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