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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.

Pictures of 828 Mayfly Specimens:

Specimen Page:1...697071...84
Male Heptagenia culacantha Mayfly DunMale Heptagenia culacantha Mayfly Dun View 3 PicturesHyun Kounne generously provided photos of the striking, hard-to-find Heptagenia culacantha from the mainstem Delaware River. She mentioned it was one of maybe half a dozen she saw on the water that day.
Collected June 3, 2017 from the Delaware River in New York
Added to Troutnut.com by Troutnut on December 5, 2019
Female Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs) Mayfly DunFemale Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs) Mayfly Dun View 6 Pictures
Collected July 31, 2020 from the Henry's Fork of the Snake River in Idaho
Added to Troutnut.com by Troutnut on August 17, 2020
Drunella coloradensis (Small Western Green Drake) Mayfly NymphDrunella coloradensis (Small Western Green Drake) Mayfly Nymph View 6 Pictures
Collected August 4, 2020 from Green Lake Outlet in Idaho
Added to Troutnut.com by Troutnut on August 20, 2020
Female Ephemerella excrucians (Pale Morning Dun) Mayfly DunFemale Ephemerella excrucians (Pale Morning Dun) Mayfly Dun View 12 PicturesThis "specimen" is actually two different duns, one missing the middle front and back left legs, the other missing the terminal filament i.e. middle tail. I added them together by accident, but since they're the same species, stage, and gender, I might as well leave them together.
Collected August 2, 2020 from the Big Lost River in Idaho
Added to Troutnut.com by Troutnut on August 18, 2020
Eurylophella (Chocolate Duns) Mayfly NymphEurylophella (Chocolate Duns) Mayfly Nymph View 3 Pictures
Collected June 8, 2005 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on May 26, 2006
Female Baetis tricaudatus (Blue-Winged Olive) Mayfly SpinnerFemale Baetis tricaudatus (Blue-Winged Olive) Mayfly Spinner View 6 Pictures
Collected July 31, 2020 from the Henry's Fork of the Snake River in Idaho
Added to Troutnut.com by Troutnut on August 16, 2020
Male Ephemerella (Hendricksons, Sulphurs, PMDs) Mayfly SpinnerMale Ephemerella (Hendricksons, Sulphurs, PMDs) Mayfly Spinner View 3 Pictures
Collected May 26, 2007 from Penn's Creek in Pennsylvania
Added to Troutnut.com by Troutnut on June 4, 2007
Cinygmula (Dark Red Quills) Mayfly NymphCinygmula (Dark Red Quills) Mayfly Nymph View 5 PicturesThis nymph was one of several mature Cinygmula nymphs collected at the same time as this female dun emerged, so they're probably the same species. Unfortunately there aren't species keys for either stage.
Collected August 4, 2020 from Green Lake Outlet in Idaho
Added to Troutnut.com by Troutnut on August 20, 2020
Female Cinygmula (Dark Red Quills) Mayfly DunFemale Cinygmula (Dark Red Quills) Mayfly Dun View 7 Pictures
Collected July 17, 2011 from the Gulkana River in Alaska
Added to Troutnut.com by Troutnut on July 20, 2011
Female Leptophlebia cupida (Borcher Drake) Mayfly SpinnerFemale Leptophlebia cupida (Borcher Drake) Mayfly Spinner View 3 PicturesI'm not positive of the collection date on this one, so I'm guessing.
Collected May 20, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Specimen Page:1...697071...84
Top 10 Fly Hatches
BaetisBaetidaeEphemerellidaeHexagenia limbataChironomidaeHeptageniidaeEphemerella subvariaEphemerellaIsonychiaHydropsychidae
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Eat mayflies.
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