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Mayfly Genus Epeorus (Little Maryatts)

Taxonomic Navigation -?-
Species in EpeorusNumber of SpecimensNumber of Pictures
Epeorus albertaePink Lady730
Epeorus deceptivus18
Epeorus fragilis00
Epeorus frisoni426
Epeorus grandis214
Epeorus longimanusSlate Brown Dun35
Epeorus pleuralisQuill Gordon542
Epeorus punctatus00
Epeorus suffusus00
Epeorus vitreusSulphur1562

9 species aren't included.
Common Names
Pictures Below

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

  • The behavior and habitat of Epeorus.
  • 9 underwater pictures of Epeorus.

Pictures of 47 Mayfly Specimens in the Genus Epeorus:

Specimen Page:1234...6
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 (Little Maryatts) Mayfly DunMale Epeorus (Little Maryatts) Mayfly Dun View 12 PicturesI hoped this dun would molt into a spinner for a positive ID, but it didn't. My best guess is Epeorus dulciana, but that's only because that's the smallest western Epeorus species, and this specimen is smaller than any of the others, with a body length of 5.3 mm (although it would be longer as a spinner) and a wing length of 8.5 mm.

It was collected at the same time as a similar-sized female dun.
Collected July 5, 2017 from the South Fork Sauk River in Washington
Added to Troutnut.com by Troutnut on July 6, 2017
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
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
Epeorus vitreus (Sulphur) Mayfly NymphEpeorus vitreus (Sulphur) Mayfly Nymph View 6 Pictures
Collected February 7, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
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
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
Specimen Page:1234...6
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