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Insect Order Ephemeroptera (Mayflies)

Pictures Below

This is page 4 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 752 Mayfly Specimens:

Specimen Page:1...345...76
Male Ephemerella subvaria (Hendrickson) Mayfly DunMale Ephemerella subvaria (Hendrickson) Mayfly Dun View 9 PicturesI collected this male Hendrickson dun and a female in the pool on the Beaverkill where the popular Hendrickson pattern was first created. He is descended from mayfly royalty.
Collected April 19, 2006 from the Beaverkill River in New York
Added to Troutnut.com by Troutnut on April 22, 2006
Female Epeorus frisoni Mayfly DunFemale Epeorus frisoni  Mayfly Dun View 7 PicturesI collected this female dun together with a female spinner, a male dun, and a larger, damaged male dun.
Collected September 6, 2006 from Mystery Creek #23 in New York
Added to Troutnut.com by Troutnut on October 3, 2006
Male Nixe inconspicua Mayfly DunMale Nixe inconspicua  Mayfly Dun View 13 PicturesThis pretty little dun was part of a sparse midsummer evening hatch on a large Catskill river.

I could not identify it by following a species key step by step, but I tentatively keyed it to the genus Nixe, and based on distribution maps and physical descriptions the most likely species is Nixe inconspicua.
Collected July 13, 2005 from the East Branch of the Delaware River in New York
Added to Troutnut.com by Troutnut on April 14, 2006
Female Leucrocuta hebe (Little Yellow Quill) Mayfly SpinnerFemale Leucrocuta hebe (Little Yellow Quill) Mayfly Spinner View 6 PicturesI found this spinner on the same piece of stream as a similar dun, probably of the same species.
Collected September 19, 2006 from Mystery Creek #43 in New York
Added to Troutnut.com by Troutnut on October 4, 2006
Female Baetis (Blue-Winged Olives) Mayfly DunFemale Baetis (Blue-Winged Olives) Mayfly Dun View 5 PicturesI found this female in the same area as a male with similar markings, probably of the same species.
Collected September 19, 2006 from Mystery Creek #43 in New York
Added to Troutnut.com by Troutnut on October 4, 2006
Penelomax septentrionalis Mayfly NymphPenelomax septentrionalis  Mayfly Nymph View 12 PicturesThis is surely the most distinctive-looking species in Ephemerellidae. I like the rugged, spindly look. If mayflies made movies, Penelomax septentrionalis would probably play the supervillain.

Maybe I should take a break and get something to eat.
Collected May 13, 2007 from the Delaware River in New York
Added to Troutnut.com by Troutnut on May 18, 2007
Specimen Page:1...345...76
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