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Rhithrogena virilis Mayfly Larva Pictures

 A photo showing the minor details on the nymph of this rarely collected mayfly

This mayfly was collected from the Big Thompson River on November 30th, 1999 and added to Troutnut.com on June 26th, 2011.

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Rhithrogena virilis Mayfly Larva from the Big Thompson River in Montana
AuthorBnewell

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