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Male Ephemera simulans (Brown Drake) Mayfly Dun Pictures

This mayfly was collected from Flathead Lake on July 11th, 2009 and added to Troutnut.com on June 27th, 2011.

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Male Ephemera simulans (Brown Drake) Mayfly Dun from Flathead Lake in Montana
AuthorBnewell
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Male Ephemera simulans (Brown Drake) Mayfly Dun from Flathead Lake in Montana
AuthorBnewell

Recent Discussions of this Dun

Lifestage 1 Reply »
Posted by Taxon on Jun 24, 2019
Last reply on Jul 2, 2019 by Troutnut
Hi Bob-

I believe this mayfly to be a female dun (subimago) rather than a spinner (imago) as it was labeled. Do you have a reason to believe I am mistaken?
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