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DragonflyMarch 28th, 2021, 7:51 pm
Posts: 1I collected this mayfly in Western North Carolina in May and I'm interested to find out the genus and/or species. I am thinking the family is Ephemerellidae. It is about 10mm long. Any ideas?
WiflyfisherMarch 29th, 2021, 4:05 am
Wisconsin

Posts: 647
I collected this mayfly in Western North Carolina in May and I'm interested to find out the genus and/or species. I am thinking the family is Ephemerellidae. It is about 10mm long. Any ideas?

No, not Ephemerellidae, the sub-imago has only 2 tails.

My guess would be Epeorus genus.
John S.
https://WiFlyFisher.com
TroutnutMarch 29th, 2021, 10:55 pm
Administrator
Bellevue, WA

Posts: 2723
The family is Heptageniidae. I agree with John that Epeorus is a good guess, but I'm not positive from a female dun.
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

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