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Male Ephemerella aurivillii Mayfly Dun Pictures

 This dun hatched in my aquarium on July 16th from an easily identified nymph collected on July 10th, and it molted into a spinner after I photographed it. The beautiful spinner form is listed as separate specimen. I forgot to photograph the dun with the ruler, but naturally his size is pretty similar to what it was as a spinner.

This mayfly was collected from Nome Creek on July 10th, 2011 and added to Troutnut.com on July 16th, 2011.

Recent Discussions of this Dun

Borealis Dun (or whatever you decide to call it)
Posted by Entoman on Jul 16, 2011
Wow, that's our boy. Definitely pink, eh? Answers a lot of questions for out West.:)
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