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Insect Order Ephemeroptera (Mayflies)

Mayflies

Caddisflies

Stoneflies

Taxonomic Navigation -?-

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

» Order Ephemeroptera (Mayflies)

Family in Ephemeroptera
AmeletidaeBrown Duns	0	0
BaetidaeBlue-Winged Olives	0	10
BaetiscidaeArmored Mayflies	0	1
CaenidaeAngler's Curses	0	0
EphemerellidaeHendricksons, Sulphurs, PMDs, BWOs	0	37
EphemeridaeHexes and Big Drakes	0	3
HeptageniidaeMarch Browns, Cahills, Quill Gordons	0	11
IsonychiidaeSlate Drakes	0	0
LeptohyphidaeTricos	0	1
LeptophlebiidaeBlue Quills and Mahogany Duns	0	0
MetretopodidaePseudo-Gray Drakes	0	0
Neoephemeridae	0	0
PolymitarcyidaeWhite Flies	0	0
PotamanthidaeGolden Drakes	0	0
SiphlonuridaeGray Drakes	0	3

8 families aren't included.

Common Name

Match	Common Name
	Mayflies

Pictures Below ↓

This is page 69 of specimens of Ephemeroptera. Visit the main Ephemeroptera page for:

The behavior and habitat of Ephemeroptera.
67 underwater pictures of Ephemeroptera.

Pictures of 828 Mayfly Specimens:

Specimen Page:1...686970...84

Ephemerella (Hendricksons, Sulphurs, PMDs) Mayfly Nymph

View 4 Pictures

Collected June 1, 2005 from the Bois Brule River in Wisconsin
Added to Troutnut.com by Troutnut on May 24, 2006

Male Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs) Mayfly Dun

View 11 Pictures

Collected June 16, 2018 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on June 21, 2018

Baetisca laurentina (Armored Mayfly) Mayfly Nymph

View 3 Pictures

Collected June 8, 2005 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on May 26, 2006

Male Cinygmula ramaleyi (Small Western Gordon Quill) Mayfly Spinner

View 10 Pictures

Collected August 3, 2020 from Star Hope Creek in Idaho
Added to Troutnut.com by Troutnut on August 19, 2020

Epeorus (Little Maryatts) Mayfly Nymph

View 3 Pictures

Collected April 24, 2007 from Factory Brook in New York
Added to Troutnut.com by Troutnut on April 24, 2007

Female Baetidae (Blue-Winged Olives) Mayfly Dun

View 3 Pictures

Collected May 22, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Male Heptagenia culacantha Mayfly Dun

View 3 PicturesHyun Kounne generously provided photos of the striking, hard-to-find Heptagenia culacantha from the mainstem Delaware River. She mentioned it was one of maybe half a dozen she saw on the water that day.

Collected June 3, 2017 from the Delaware River in New York
Added to Troutnut.com by Troutnut on December 5, 2019

Female Epeorus vitreus (Sulphur) Mayfly Spinner

View 3 PicturesI collected this one as a dun, and she molted into a spinner in my room.

Collected May 26, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Female Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs) Mayfly Dun

View 6 Pictures

Collected July 31, 2020 from the Henry's Fork of the Snake River in Idaho
Added to Troutnut.com by Troutnut on August 17, 2020

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

View 4 Pictures

Collected June 5, 2005 from the Teal River in Wisconsin
Added to Troutnut.com by Troutnut on May 24, 2006

Specimen Page:1...686970...84

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.