**Mayfly Genus Stenacron (Light Cahills)**

Mayflies

Caddisflies

Stoneflies

Taxonomic Navigation -?-

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

» Order Ephemeroptera (Mayflies)

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

» Genus Stenacron (Light Cahills)

Species in Stenacron
Stenacron interpunctatumLight Cahill	3	22

6 species aren't included.

Common Names

Match	Common Name
	Light Cahills
	Ginger Quills
	Light Cahill Spinners
	Cahills
	Golden Duns
	Yellow Duns
	Salmon Spinners
	Gray Foxes
	Cream Mays
	Pink Cahills

Pictures Below ↓

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

The behavior and habitat of Stenacron.
1 streamside picture of Stenacron.

Pictures of 8 Mayfly Specimens in the Genus Stenacron:

Specimen Page:12

Female Stenacron (Light Cahills) Mayfly Dun

View 3 Pictures

Collected July 31, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 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 the West Branch of Owego Creek in New York
Added to Troutnut.com by Troutnut on August 23, 2006

Female Stenacron (Light Cahills) Mayfly Dun

View 4 Pictures

Collected July 14, 2004 from the Couderay River in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Female Stenacron (Light Cahills) Mayfly Spinner

View 4 Pictures

Collected July 13, 2005 from the East Branch of the Delaware River in New York
Added to Troutnut.com by Troutnut on April 14, 2006

Stenacron (Light Cahills) Mayfly Nymph

View 2 Pictures

Collected August 8, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 18, 2006

Specimen Page:12

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.

Useful References:

Fauceglia, Ted. 2005. Mayflies . Stackpole Books.

Knopp, Malcolm and Robert Cormier. 1997. Mayflies: An Angler's Study of Trout Water Ephemeroptera . The Lyons Press.