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Siphlonurus autumnalis (Gray Drake) Mayfly Nymph Pictures

This mayfly was collected from Crazy Beaver Spring on August 31st, 2007 and added to on June 28th, 2011.

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Siphlonurus autumnalis (Gray Drake) Mayfly Nymph from Crazy Beaver Spring in Montana

Recent Discussions of this Nymph

Mix-up 2 Replies »
Posted by GONZO on Jul 2, 2011
Last reply on Jul 2, 2011 by Troutnut
I've really been enjoying looking at Dr. Newell's additions to the "Aquatic Insect Encyclopedia," but there seems to have been some sort of mix-up here. The 2nd photograph is an female ephemerellid dun, possibly something like Ephemerella tibialis.

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