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Animal Kingdom Animalia (Animals)

Mayflies

Caddisflies

Stoneflies

Taxonomic Navigation -?-

Kingdom Animalia (Animals)

Phylum in Animalia
AnnelidaWorms and Leeches	0	2
ArthropodaArthropods	0	122
ChordataVertebrates	0	4
Mollusca	0	6
PlatyhelminthesFlatworms	0	0

Common Name

Match	Common Name
	Animals

Pictures Below ↓

This is page 8 of specimens of Animalia. Visit the main Animalia page for:

The behavior and habitat of Animalia.
131 underwater pictures of Animalia.

Pictures of 1264 Animal Specimens:

Specimen Page:1...789...128

Female Maccaffertium ithaca (Light Cahill) Mayfly Dun

View 10 PicturesThis female looks very much like a male I collected a few hundred miles away a few days later, so I'm guessing it's the same species, which I believe is Maccaffertium mediopunctatum.

Collected May 23, 2007 from the Little Juniata River in Pennsylvania
Added to Troutnut.com by Troutnut on June 4, 2007

Paragnetina (Golden Stones) Stonefly Adult

View 10 PicturesUnfortunately I forgot to photograph this one next to the ruler, but I seem to remember it being on the small side for a Perlid, maybe around 2cm.

Collected May 6, 2007 from Aquarium in New York
Added to Troutnut.com by Troutnut on May 18, 2007

Pteronarcys dorsata (Giant Black Stonefly) Stonefly Nymph

View 7 Pictures

Collected January 13, 2004 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Male Maccaffertium vicarium (March Brown) Mayfly Dun

View 10 PicturesI collected this mayfly on the same trip as a female of the same species. After these photos it molted into a spinner. This is the form of Maccaffertium vicarium which anglers call the "Gray Fox."

Collected May 28, 2005 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on May 24, 2006

Female Hexagenia atrocaudata (Late Hex) Mayfly Dun

View 14 PicturesI found this lone Hexagenia atrocaudata dun fluttering by herself on the surface of a small, still stretch of river one evening as I paddled home from fishing for smallmouths in the warm August weather.

Collected August 5, 2005 from the Teal River in Wisconsin
Added to Troutnut.com by Troutnut on April 14, 2006

Siphlonurus quebecensis (Gray Drake) Mayfly Nymph

View 9 Pictures

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

Male Epeorus (Little Maryatts) Mayfly Spinner

View 10 PicturesI collected a female dun on the same day that probably belongs to the same species as this spinner.

Collected May 15, 2007 from Enfield Creek in Treman Park in New York
Added to Troutnut.com by Troutnut on May 18, 2007

Acroneuria abnormis (Golden Stone) Stonefly Nymph

View 10 Pictures

Collected May 29, 2007 from Paradise Creek in Pennsylvania
Added to Troutnut.com by Troutnut on June 4, 2007

Male Nigronia serricornis (Fishfly) Hellgrammite Adult

View 10 Pictures

Collected May 29, 2007 from Brodhead Creek in Pennsylvania
Added to Troutnut.com by Troutnut on June 4, 2007

Male Epeorus pleuralis (Quill Gordon) Mayfly Spinner

View 10 PicturesA few days earlier I photographed this same specimen as a dun. The changes between dun and spinner seem particularly dramatic in this species.

Collected April 30, 2007 from Dresserville Creek in New York
Added to Troutnut.com by Troutnut on May 3, 2007

Specimen Page:1...789...128

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.