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Salmon Spinners

Mayflies

Caddisflies

Stoneflies

Scientific Names

Match	Scientific Name
	Stenacron
	Epeorus albertae
	Epeorus vitreus

Like most common names, "Salmon Spinner" can refer to more than one taxon. They're previewed below, along with 8 specimens. For more detail click through to the scientific names.

Mayfly Genus Stenacron

These are very rarely called Salmon Spinners.

The species in this genus were formerly classified in Stenonema. See the genus Maccaffertium for details. Only one species, Stenacron interpunctatum, is important to fly fishermen. See its page for details.

Stenacron interpunctatum (Light Cahill) Mayfly Nymph

View 7 Pictures

Collected June 5, 2005 from in
Added to Troutnut.com by on May 25, 2006

Female Stenacron interpunctatum (Light Cahill) Mayfly Dun

View 6 PicturesThis is a fairly small late-season female Stenacron dun.

Collected August 22, 2006 from in
Added to Troutnut.com by on August 23, 2006

Male Stenacron interpunctatum (Light Cahill) Mayfly Spinner

View 8 Pictures

Collected June 10, 2005 from in
Added to Troutnut.com by on May 26, 2006

See 5 more specimens...

Mayfly Species Epeorus albertae

These are very rarely called Salmon Spinners.

This is one of the two most common Western species of Epeorus, and its spinner falls can be important.

Female Epeorus albertae (Pink Lady) Mayfly Dun

View 7 Pictures

Collected July 11, 2017 from in
Added to Troutnut.com by on July 12, 2017

Male Epeorus albertae (Pink Lady) Mayfly Spinner

View 14 Pictures

Collected July 11, 2017 from in
Added to Troutnut.com by on July 12, 2017

See 5 more specimens...

Mayfly Species Epeorus vitreus

These are very rarely called Salmon Spinners.

This is the second most common Epeorus species in the East and Midwest. Most anglers will encounter sporadic hatches of Epeorus vitreus once in a while, and sometimes a more concentrated emergence causes a good rise of fish.

Epeorus vitreus (Sulphur) Mayfly Nymph

View 6 Pictures

Collected February 7, 2004 from in
Added to Troutnut.com by on January 25, 2006

Male Epeorus vitreus (Sulphur) Mayfly Dun

View 4 PicturesThis is my favorite mayfly from 2004, and it appears on my popular Be the Trout: Eat Mayflies products. Check them out!

Its identification is really up in the air. It might be a late-season vitreus dun but it may very well be one of the more obscure species in that genus.

Collected September 2, 2004 from in
Added to Troutnut.com by on January 25, 2006

Female Epeorus vitreus (Sulphur) Mayfly Spinner

View 9 Pictures

Collected September 19, 2006 from in
Added to Troutnut.com by on October 4, 2006

See 12 more specimens...

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.

Emergence: The transformation of a nymph or pupa into the adult winged stage of an insect. The term may refer to the emergence of an individual, or the daily or yearly event in which all individuals of a species emerge.

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.