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

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» Family Heptageniidae (March Browns, Cahills, Quill Gordons)
Genus in HeptageniidaeNumber of SpecimensNumber of Pictures
CinygmaWestern Light Cahills12
CinygmulaDark Red Quills23125
EcdyonurusWestern Ginger Quills11
EpeorusLittle Maryatts47271
Heptagenia930
Ironodes13
Leucrocuta1158
MaccaffertiumMarch Browns and Cahills59270
Nixe113
Rhithrogena25118
Spinadis00
StenacronLight Cahills847
Stenonema16

3 genera aren't included.
Common Name
Pictures Below

This is page 4 of specimens of Heptageniidae. Visit the main Heptageniidae page for:

  • The behavior and habitat of Heptageniidae.
  • 11 underwater pictures of Heptageniidae.

Pictures of 194 Mayfly Specimens in the Family Heptageniidae:

Specimen Page:1...345...21
Cinygmula subaequalis (Small Gordon Quill) Mayfly NymphCinygmula subaequalis (Small Gordon Quill) Mayfly Nymph View 10 PicturesThis nymph is missing a few gills, but is otherwise in good shape. It was the only one of its species which turned up in my sample.
Collected May 29, 2007 from Paradise Creek in Pennsylvania
Added to Troutnut.com by Troutnut on June 4, 2007
Male Epeorus pleuralis (Quill Gordon) Mayfly SpinnerMale Epeorus pleuralis (Quill Gordon) Mayfly Spinner View 10 PicturesI spent (Spent: The wing position of many aquatic insects when they fall on the water after mating. The wings of both sides lay flat on the water. The word may be used to describe insects with their wings in that position, as well as the position itself.) most of the day looking for Epeorus pluralis duns or spinners without any luck on the major Catskill rivers. Finally in the evening I arrived at a small stream somebody had recommended, and when I got out of the car I was happy to find that I had parked in the middle of a cloud of male spinners.
Collected April 19, 2006 from Mongaup Creek in New York
Added to Troutnut.com by Troutnut on April 22, 2006
Male Epeorus pleuralis (Quill Gordon) Mayfly DunMale Epeorus pleuralis (Quill Gordon) Mayfly Dun View 9 PicturesI kept this specimen after photographing it and it molted into a spinner in perfect condition, which I photographed here.
Collected April 30, 2007 from Dresserville Creek in New York
Added to Troutnut.com by Troutnut on May 3, 2007
Male Maccaffertium vicarium (March Brown) Mayfly DunMale 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
Male Epeorus (Little Maryatts) Mayfly SpinnerMale Epeorus (Little Maryatts) Mayfly Spinner View 10 PicturesThis spinner and hundreds of others like it were dancing over the road through a very narrow valley carved by a tiny, steep tributary of the trout stream I was fishing. I got strange looks from a few passers-by, standing around on the road with a butterfly net...
Collected May 9, 2007 from Unnamed trib of Factory Brook along 42a in New York
Added to Troutnut.com by Troutnut on May 18, 2007
Male Epeorus pleuralis (Quill Gordon) Mayfly SpinnerMale 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
Male Cinygmula ramaleyi (Small Western Gordon Quill) Mayfly SpinnerMale Cinygmula ramaleyi (Small Western Gordon Quill) Mayfly Spinner View 4 PicturesThis one was preserved in ethanol and partially dissected, so it doesn't have its natural wild coloration, and it's missing some appendages. I'm posting it for identification purposes.
Collected September 4, 2015 from Mystery Creek #186 in Alaska
Added to Troutnut.com by Troutnut on October 27, 2015
Female Maccaffertium ithaca (Light Cahill) Mayfly DunFemale 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
Male Epeorus (Little Maryatts) Mayfly SpinnerMale 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
Specimen Page:1...345...21
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