Siphlonurus autumnalis (Gray Drake) Mayfly Nymph Pictures

Mayflies

Caddisflies

Stoneflies

Classification

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

» Order Ephemeroptera (Mayflies)

» Family Siphlonuridae (Gray Drakes)

» Genus Siphlonurus (Gray Drakes)

» Species autumnalis (Gray Drake)

This mayfly was collected from Crazy Beaver Spring on August 31st, 2007 and added to Troutnut.com 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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