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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 Quills20103
EcdyonurusWestern Ginger Quills11
EpeorusLittle Maryatts46260
Heptagenia930
Ironodes13
Leucrocuta1158
MaccaffertiumMarch Browns and Cahills59270
Nixe113
Rhithrogena2185
StenacronLight Cahills847
Stenonema16

4 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 188 Mayfly Specimens in the Family Heptageniidae:

Specimen Page:1...345...20
Cinygmula (Dark Red Quills) Mayfly NymphCinygmula (Dark Red Quills) Mayfly Nymph View 7 PicturesThis very strange nymph appears to be undoubtedly Cinygmula, yet it lacks the telltale protruding mouthparts that usually make that genus so easy to identify.
Collected July 17, 2011 from the Gulkana River in Alaska
Added to Troutnut.com by Troutnut on July 20, 2011
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
Female Cinygmula ramaleyi (Small Western Gordon Quill) Mayfly DunFemale Cinygmula ramaleyi (Small Western Gordon Quill) Mayfly Dun View 7 PicturesThis dun is almost certainly of the same species as this nymph, as it hatched in my cooler from a nearly identical nymph.
Collected July 10, 2011 from Nome Creek in Alaska
Added to Troutnut.com by Troutnut on July 13, 2011
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
Female Epeorus frisoni Mayfly SpinnerFemale Epeorus frisoni  Mayfly Spinner View 8 PicturesI collected this female spinner together with a male dun, 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
Specimen Page:1...345...20
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