Siphloplecton basale (Pseudo-Gray Drake) Mayfly Nymph Pictures

 This one's stunned or freshly dead in the pictures, because the water in my photographing tank was a bit too warm for him after being under the bright light for a while.

This mayfly was collected from the Upper Midwest on January 31st, 2004 and added to Troutnut.com on January 25th, 2006.

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