**Mayfly Genus Epeorus (Little Maryatts)**

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Taxonomic Navigation -?-

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

» Order Ephemeroptera (Mayflies)

» Family Heptageniidae (March Browns, Cahills, Quill Gordons)

» Genus Epeorus (Little Maryatts)

Species in Epeorus
Epeorus albertaePink Lady	0	0
Epeorus deceptivus	0	0
Epeorus fragilis	0	0
Epeorus grandis	0	0
Epeorus longimanusSlate Brown Dun	0	0
Epeorus pleuralisQuill Gordon	5	44
Epeorus punctatus	0	0
Epeorus suffusus	0	0
Epeorus vitreusSulphur	10	40

10 species aren't included.

Common Names

Match	Common Name
	Little Maryatts
	Small Western Gordon Quills
	Yellow Quills
	Slate Maroon Drakes
	Slate Brown Duns
	Western Gordon Quills
	Pink Ladies
	Slate Cream Duns

Pictures Below ↓

This is page 3 of specimens of Epeorus. Visit the main Epeorus page for:

The behavior and habitat of Epeorus.
9 underwater pictures of Epeorus.
3 streamside pictures of Epeorus.

29 Mayfly Specimens in the Genus Epeorus:

Specimen Page:1 234

Epeorus (Little Maryatts) Mayfly Dun

View 7 PicturesI collected this female dun together with a female spinner, a male dun, and a larger, damaged male dun.

Region: Catskills

Collected Sep 6, 2006

Added Oct 4, 2006

Epeorus (Little Maryatts) Mayfly Dun

View 7 PicturesThis Epeorus dun managed to emerge successfully even though it had apparently long several legs at some point and only partially grown them back.

Region: Catskills

Collected May 15, 2007

Added May 18, 2007

Epeorus (Little Maryatts) Mayfly Dun

View 7 PicturesThis dun comes from the same location, and is about the same size, so is presumably the same species as this male spinner.

Region: Northeast

Collected May 15, 2007

Added May 18, 2007

Epeorus vitreus (Sulphur) Mayfly Dun

View 4 Pictures

Region: Upper Midwest

Collected Jun 8, 2005

Added May 26, 2006

Epeorus (Little Maryatts) Mayfly Spinner

View 4 Pictures

Region: PA Limestone

Collected May 26, 2007

Added Jun 4, 2007

Epeorus (Little Maryatts) Mayfly Dun

View 6 Pictures

Region: Poconos

Collected May 28, 2007

Added Jun 4, 2007

Epeorus (Little Maryatts) Mayfly Spinner

View 6 Pictures

Region: Poconos

Collected May 28, 2007

Added Jun 4, 2007

Epeorus (Little Maryatts) Mayfly Nymph

View 3 Pictures

Region: Northeast

Collected Apr 24, 2007

Added Apr 25, 2007

Epeorus (Little Maryatts) Mayfly Dun

View 2 PicturesI collected this male dun together with a female spinner, a female dun, and another male dun. I photographed this bedraggled one, larger than the other male, to show some of the greatest size variation within the species.

Region: Catskills

Collected Sep 6, 2006

Added Oct 4, 2006

Epeorus vitreus (Sulphur) Mayfly Nymph

View 6 Pictures

Region: Upper Midwest

Collected Feb 7, 2004

Added Jan 25, 2006

Specimen Page:1 234

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Jargon Defined:

Dun: Mayflies have two adult stages. They first emerge from the water as duns (scientifically known as the subimago stage). They then molt into the spinner (imago) stage, in which they mate and die. Sometimes the word "dun" is confusingly used to refer to a brownish gray color in fly tying materials.

Spinner: There are two winged stages of adult mayflies. They emerge from the water as duns, molt on land (usually) into their fully mature stage, spinners. As spinners, they mate, lay eggs, and die.

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.

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