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Female Ephemerella septentrionalis Mayfly Dun Pictures

Classification
Kingdom Animalia (Animals)
» Phylum Arthropoda (Arthropods)
» Class Insecta (Insects)
» Order Ephemeroptera (Mayflies)
» Family Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs)
» Genus Ephemerella (Hendricksons, Sulphurs, PMDs)
» Species septentrionalis
 I'm pretty sure this dun belongs to septentrionalis, because her legs are just too long for invaria. I know that species is in this system because I collected several nymphs some miles downstream.

This really pretty mayfly was in kind of bad shape when I found it crippled on the surface, and bouncing around in my container with a bunch of green drakes didn't help.


This mayfly was collected from the Catskills on June 1st, 2007 and added to Troutnut.com on June 4th, 2007.

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