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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
Male Epeorus frisoni Mayfly DunMale Epeorus frisoni  Mayfly Dun View 9 PicturesI collected this male dun together with a female spinner, a female dun, and another male dun.
Collected September 6, 2006 from Mystery Creek #23 in New York
Added to Troutnut.com by Troutnut on October 3, 2006
Female Rhithrogena Mayfly SpinnerFemale Rhithrogena  Mayfly Spinner View 9 PicturesI'm very tentatively (see the connected forum thread) sticking this mayfly in Rhithrogena for now.
Collected June 7, 2007 from the West Branch of the Delaware River in New York
Added to Troutnut.com by Troutnut on June 8, 2007
Female Maccaffertium vicarium (March Brown) Mayfly SpinnerFemale Maccaffertium vicarium (March Brown) Mayfly Spinner View 7 PicturesI collected this mayfly on the same trip as a male of the same species. They are Maccaffertium vicarium mayflies of the type formerly known as Stenonema fuscom, the "Gray Fox."
Collected May 28, 2005 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on May 24, 2006
Cinygmula ramaleyi (Small Western Gordon Quill) Mayfly NymphCinygmula ramaleyi (Small Western Gordon Quill) Mayfly Nymph View 9 PicturesThis nymph is almost definitely the same species as this dun, which hatched from a nearly identical nymph from the same collection.
Collected July 10, 2011 from Nome Creek in Alaska
Added to Troutnut.com by Troutnut on July 13, 2011
Female Epeorus (Little Maryatts) Mayfly DunFemale Epeorus (Little Maryatts) Mayfly Dun View 7 PicturesThis dun comes from the same location, and is about the same size, so is presumably the same species as this male spinner.
Collected May 15, 2007 from Enfield Creek in Treman Park in New York
Added to Troutnut.com by Troutnut on May 18, 2007
Rhithrogena impersonata (Dark Red Quill) Mayfly NymphRhithrogena impersonata (Dark Red Quill) Mayfly Nymph View 6 PicturesThis was the only Rhithrogena specimen in a large sample of nymphs from a small Catskill stream. It looks virtually identical to Rhithrogena impersonata specimens collected in the Midwest, but I didn't get to check the distinguishing features under a microscope.
Collected April 19, 2006 from Mongaup Creek in New York
Added to Troutnut.com by Troutnut on April 21, 2006
Specimen Page:1...345...21
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