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Mayfly Genus Rhithrogena

Taxonomic Navigation -?-
Species in RhithrogenaNumber of SpecimensNumber of Pictures
Rhithrogena futilisWestern Gordon Quill00
Rhithrogena hageniWestern Black Quill00
Rhithrogena impersonataDark Red Quill319
Rhithrogena jejunaDark Red Quill00
Rhithrogena manifesta00
Rhithrogena morrisoniWestern March Brown416
Rhithrogena robusta25
Rhithrogena undulataSmall Western Red Quill00
Rhithrogena virilis529

14 species aren't included.
Pictures Below

This is page 3 of specimens of Rhithrogena. Visit the main Rhithrogena page for:

  • The behavior and habitat of Rhithrogena.

Pictures of 25 Mayfly Specimens in the Genus Rhithrogena:

Specimen Page:1234
Male Rhithrogena Mayfly SpinnerMale Rhithrogena  Mayfly Spinner View 14 Pictures
Collected July 8, 2019 from the Ruby River in Montana
Added to Troutnut.com by Troutnut on July 18, 2019
Rhithrogena virilis Mayfly LarvaRhithrogena virilis  Mayfly Larva View 1 PicturesA photo showing the minor details on the nymph of this rarely collected mayfly
Collected November 30, 1999 from the Big Thompson River in Montana
Added to Troutnut.com by Bnewell on June 26, 2011
Rhithrogena impersonata (Dark Red Quill) Mayfly NymphRhithrogena impersonata (Dark Red Quill) Mayfly Nymph View 8 PicturesThis specimen shows one of two distinct color types of Rhithrogena impersonata nymphs. This type is very reddish, especially in the gills, and it was formerly in its own species called Rhithrogena sanguinea.
Collected June 5, 2005 from the Long Lake Branch of the White River in Wisconsin
Added to Troutnut.com by Troutnut on May 24, 2006
Female Rhithrogena Mayfly SpinnerFemale Rhithrogena  Mayfly Spinner View 5 PicturesThis one was collected at the same time as this male and is likely the same species.
Collected July 1, 2019 from the Madison River in Montana
Added to Troutnut.com by Troutnut on July 17, 2019
Female Rhithrogena Mayfly SpinnerFemale Rhithrogena  Mayfly Spinner View 3 Pictures
Collected July 2, 2019 from the Gallatin River in Montana
Added to Troutnut.com by Troutnut on July 18, 2019
Rhithrogena robusta Mayfly SpinnerRhithrogena robusta  Mayfly Spinner View 2 Pictures
Collected July 15, 2011 from the Touchet River in Washington
Added to Troutnut.com by Bnewell on July 15, 2011
Male Rhithrogena robusta Mayfly SpinnerMale Rhithrogena robusta  Mayfly Spinner View 3 PicturesThese specimens were collected from a mating swarm from the east branch of the North Fork of the Touchet River, upstream from the Bluewood Ski Area turn.It was a sunny warm day, mating swarm as 4-8 ft. above this small stream. Four male spinners were collected.Stream photos were taken.
Collected July 15, 2011 from the Touchet River in Washington
Added to Troutnut.com by Bnewell on July 15, 2011
Rhithrogena Mayfly DunRhithrogena  Mayfly Dun View 1 Pictures
Collected March 27, 2010 from the Big Thompson River in Montana
Added to Troutnut.com by Bnewell on June 26, 2011
Female Rhithrogena virilis Mayfly DunFemale Rhithrogena virilis  Mayfly Dun View 6 PicturesI'm guessing this one is Rhithrogena virilis based on collection of a male spinner of similar size and body configuration during the same trip.
Collected June 16, 2018 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on June 23, 2018
Specimen Page:1234
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