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Isonychia bicolor (Mahogany Dun) Mayfly Nymph Pictures

This mayfly was collected from the Namekagon River on January 19th, 2004 and added to Troutnut.com on January 25th, 2006.

Video Clip

Isonychia nymph swimming around
These nymphs may be the best swimmers of all North American mayflies.
Date ShotJan 19, 2004
Date AddedMar 31, 2006
AuthorTroutnut

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Isonychia bicolor (Mahogany Dun) Mayfly Nymph from the Namekagon River in Wisconsin

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