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Mayfly Family Ephemeridae (Hexes and Big Drakes)

Mayflies

Caddisflies

Stoneflies

Taxonomic Navigation -?-

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

» Order Ephemeroptera (Mayflies)

» Family Ephemeridae (Hexes and Big Drakes)

Genus in Ephemeridae
Ephemera	0	2
Hexagenia	0	1
Litobrancha	0	0

Common Name

Match	Common Name
	Hexes and Big Drakes

Pictures Below ↓

This is page 2 of specimens of Ephemeridae. Visit the main Ephemeridae page for:

The behavior and habitat of Ephemeridae.
3 underwater pictures of Ephemeridae.

Pictures of 55 Mayfly Specimens in the Family Ephemeridae:

Specimen Page:123 4...7

Ephemera simulans (Brown Drake) Mayfly Nymph

View 10 Pictures

Collected January 31, 2004 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Ephemera simulans (Brown Drake) Mayfly Nymph

View 10 Pictures

Collected January 31, 2004 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Male Hexagenia limbata (Hex) Mayfly Spinner

View 13 Pictures

Collected June 26, 2005 from Atkins Lake in Wisconsin
Added to Troutnut.com by Troutnut on May 26, 2006

Male Ephemera guttulata (Green Drake) Mayfly Spinner

View 12 PicturesThis spinner was the only member of its species I saw all night during an incredibly thick and tricky mixed hatch on Penn's Creek a few days before the real start of its famous green drake hatch.

Collected May 26, 2007 from Penn's Creek in Pennsylvania
Added to Troutnut.com by Troutnut on June 4, 2007

Hexagenia limbata (Hex) Mayfly Nymph

View 9 Pictures

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

Hexagenia limbata (Hex) Mayfly Nymph

View 7 Pictures

Collected March 1, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Ephemera simulans (Brown Drake) Mayfly Nymph

View 6 Pictures

Collected January 31, 2004 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Female Ephemera varia (Yellow Drake) Mayfly Dun

View 7 PicturesThis yellow drake dun hatched out of my aquarium over a month before her brethren in the wild are slated to emerge. She seems a bit small, and that might be the reason.

Collected May 13, 2007 from Aquarium in New York
Added to Troutnut.com by Troutnut on May 18, 2007

Ephemera simulans (Brown Drake) Mayfly Nymph

View 5 Pictures

Collected January 31, 2004 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Female Hexagenia limbata (Hex) Mayfly Spinner

View 8 Pictures

Collected June 28, 2005 from the White River in Wisconsin
Added to Troutnut.com by Troutnut on May 26, 2006

Specimen Page:123 4...7

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.