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

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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 in Heptageniidae
CinygmaWestern Light Cahills	0	0
CinygmulaDark Red Quills	1	10
EcdyonurusWestern Ginger Quills	0	0
EpeorusLittle Maryatts	31	193
Heptagenia	4	18
Ironodes	0	0
Leucrocuta	8	47
MaccaffertiumMarch Browns and Cahills	58	273
Nixe	1	13
Rhithrogena	4	28
StenacronLight Cahills	8	48
Stenonema	1	6

4 genera aren't included.

Common Name

Match	Common Name
	March Browns, Cahills, Quill Gordons

Pictures Below ↓

This is page 6 of specimens of Heptageniidae. Visit the main Heptageniidae page for:

The behavior and habitat of Heptageniidae.
11 underwater pictures of Heptageniidae.
6 streamside pictures of Heptageniidae.

122 Mayfly Specimens in the Family Heptageniidae:

Specimen Page:1...567...13

Leucrocuta hebe (Little Yellow Quill) Mayfly Spinner

View 8 Pictures

Region: Catskills

Collected Sep 4, 2006

Added Oct 3, 2006

Maccaffertium vicarium (March Brown) Mayfly Spinner

View 5 PicturesThis spinner comes from a dun I collected and photographed earlier.

Region: Upper Midwest

Collected May 28, 2005

Added May 24, 2006

Heptagenia Mayfly Nymph

View 6 Pictures

Region: Upper Midwest

Collected Jun 5, 2005

Added May 25, 2006

Maccaffertium (March Browns and Cahills) Mayfly Dun

View 6 PicturesI collected this male dun together with a female.

Region: Upper Midwest

Collected May 27, 2005

Added May 22, 2006

Maccaffertium vicarium (March Brown) Mayfly Spinner

View 6 Pictures

Region: Upper Midwest

Collected Jun 1, 2005

Added May 25, 2006

Maccaffertium mexicanum (Cream Cahill) Mayfly Nymph

View 3 Pictures

Region: Upper Midwest

Collected Jan 14, 2004

Added Jan 25, 2006

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

Heptageniidae (March Browns, Cahills, Quill Gordons) Mayfly Dun

View 6 Pictures

Region: Upper Midwest

Collected Jun 4, 2005

Added May 25, 2006

Maccaffertium (March Browns and Cahills) Mayfly Nymph

View 5 Pictures

Region: Northeast

Collected Mar 29, 2005

Added Apr 7, 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

Specimen Page:1...567...13

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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.