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Insect Order Ephemeroptera (Mayflies)

Pictures Below

This is page 70 of specimens of Ephemeroptera. Visit the main Ephemeroptera page for:

  • The behavior and habitat of Ephemeroptera.
  • 67 underwater pictures of Ephemeroptera.
  • 2 streamside pictures of Ephemeroptera.

Pictures of 699 Mayfly Specimens:

Specimen Page:1...68697071
Female Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs) Mayfly DunFemale Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs) Mayfly Dun View 2 PicturesI've tentatively called this fragile, highly damaged dun a Serratella species. I had much better pictures of the species but lost them. It's about size 22, but good-sized trout were rising to this hatch; I suspect it has to do with the solid profile shown by the dark, almost-black wings that have given this hatch the name "Darth Vaders" among some Wisconsin anglers.
Collected July 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Drunella doddsii (Western Green Drake) Mayfly NymphDrunella doddsii (Western Green Drake) Mayfly Nymph View 1 PicturesMature nymph.
Collected July 5, 2007 from Many streams in Montana
Added to Troutnut.com by Bnewell on June 26, 2011
Female Paraleptophlebia (Blue Quills and Mahogany Duns) Mayfly SpinnerFemale Paraleptophlebia (Blue Quills and Mahogany Duns) Mayfly Spinner View 1 PicturesThis female is probably P. heteronea or P. memorialis since these are the two species collected during the last two weeks. It is interesting that the females are this very dark brown color while the males are lighter in color.
Collected June 29, 2011 from the Touchet River in Washington
Added to Troutnut.com by Bnewell on June 29, 2011
Male Rhithrogena virilis Mayfly SpinnerMale Rhithrogena virilis  Mayfly Spinner View 8 PicturesI'm guessing this is Rhithrogena virilis based on resemblance to a similar specimen collected last year.
Collected June 16, 2018 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on June 23, 2018
Male Heptagenia adaequata Mayfly SpinnerMale Heptagenia adaequata  Mayfly Spinner View 0 PicturesCollected near the Columbia River at Pasco, WA.
Collected July 22, 2012 from the Columbia River in Washington
Added to Troutnut.com by Bnewell on July 26, 2012
Specimen Page:1...68697071
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