**Female Ephemerella invaria (Sulphur Dun) Mayfly Dun Pictures**

Mayflies

Caddisflies

Stoneflies

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 invaria (Sulphur Dun)

This mayfly was collected from unknown on May 23rd, 2004 and added to Troutnut.com on January 25th, 2006.

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Female Ephemerella invaria (Sulphur Dun) Mayfly Dun from unknown in Wisconsin

AuthorTroutnut

CameraOlympus C740UZ

Shown Full Size

AuthorTroutnut

CameraOlympus C740UZ

Shown Full Size

AuthorTroutnut

CameraOlympus C740UZ

Shown Full Size

AuthorTroutnut

CameraOlympus C740UZ

Recent Discussions of this Dun

Another sulphur for comment 1 Reply »

Posted by Martinlf on Aug 17, 2007

Last reply on Aug 21, 2007 by Gene

And this one, also from the midwest, is more green than the sulphurs I recall seeing this season. My limited experience in PA streams suggests that many, if not most, of the sulphurs here are best imitated by pale yellow, bright yellow, or orange bodies. Gene, and others, am I far off?

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