**Mayfly Species Ephemerella subvaria (Hendrickson)**

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Taxonomic Navigation -?-

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

» Order Ephemeroptera (Mayflies)

» Family Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs)

» Genus Ephemerella (Hendricksons, Sulphurs, PMDs)

» Species subvaria (Hendrickson)

Common Names

Match	Common Name
	Hendrickson
	Dark Hendrickson
	Red Quill Spinner
	Red Quill
	Lady Beaverkill
	Whirling Dun
	Borcher Drake
	Beaverkill

Pictures Below ↓

This is page 5 of specimens of Ephemerella subvaria. Visit the main Ephemerella subvaria page for:

The behavior and habitat of Ephemerella subvaria.
24 underwater pictures of Ephemerella subvaria.

Pictures of 34 Mayfly Specimens in the Species Ephemerella subvaria:

Specimen Page:1 2 3 45

Ephemerella subvaria (Hendrickson) Mayfly Nymph

View 2 PicturesHere's another of the nymphs I collected behaving strangely, as described for this specimen.

Collected March 17, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Specimen Page:1 2 3 45

Jargon Defined:

Nymphs: The juvenile, underwater stages of mayflies, stoneflies, dragonflies, and damselflies and other aquatic insects whose juvenile stages are covered by hard exoskeletons. The word can also refer to the fishing flies which imitate these creatures, in which case it is used as a blanket term for flies imitating any underwater stage of an invertebrate (except for crayfish and leeches).

Useful References:

Arbona, Fred Jr. 1989. Mayflies, the Angler, and the Trout. Nick Lyons Books.

Caucci, Al and Nastasi, Bob. 2004. Hatches II. The Lyons Press.

Fauceglia, Ted. 2005. Mayflies . Stackpole Books.

Knopp, Malcolm and Robert Cormier. 1997. Mayflies: An Angler's Study of Trout Water Ephemeroptera . The Lyons Press.

Leonard, Justin W. and Fannie A. Leonard. 1962. Mayflies of Michigan Trout Streams. Cranbrook Institute of Science.

Schwiebert, Ernest G. 1955. Matching the Hatch. MacMillan Publishing Company.

Swisher, Doug and Carl Richards. 2000. Selective Trout. The Lyons Press.