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Insect Order Ephemeroptera (Mayflies)



Pictures Below ↓

This is page 59 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...585960...84
Male Ephemerella invaria (Sulphur Dun) Mayfly SpinnerMale Ephemerella invaria (Sulphur Dun) Mayfly Spinner View 4 Pictures
Collected May 23, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Ephemerella needhami (Little Dark Hendrickson) Mayfly NymphEphemerella needhami (Little Dark Hendrickson) Mayfly Nymph View 8 Pictures
Collected May 28, 2005 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on May 24, 2006
Female Paraleptophlebia (Blue Quills and Mahogany Duns) Mayfly DunFemale Paraleptophlebia (Blue Quills and Mahogany Duns) Mayfly Dun View 5 Pictures
Collected June 1, 2007 from the West Branch of the Delaware River in New York
Added to Troutnut.com by Troutnut on June 4, 2007
Ameletus (Brown Duns) Mayfly NymphAmeletus (Brown Duns) Mayfly Nymph View 6 Pictures
Collected July 28, 2019 from Mystery Creek #199 in Washington
Added to Troutnut.com by Troutnut on July 30, 2019
Male Acentrella insignificans (Tiny Blue-Winged Olive) Mayfly DunMale Acentrella insignificans (Tiny Blue-Winged Olive) Mayfly Dun View 11 PicturesThis specimen emerged indoors from nymphs I had collected, then partly molted into a spinner but got stuck along the way. I've included a couple pictures showing some of the spinner colors. It got a bit waterlogged after emerging, so the wings aren't in perfect shape, but it still represents one of two Baetids that were emerging and drawing trout to rise on the Yakima. Based on body size and shape, it is most likely the same species as this nymph.
Collected September 12, 2020 from the Yakima River in Washington
Added to Troutnut.com by Troutnut on September 19, 2020
Male Baetisca laurentina (Armored Mayfly) Mayfly SpinnerMale Baetisca laurentina (Armored Mayfly) Mayfly Spinner View 7 Pictures
Collected June 1, 2005 from the Bois Brule River in Wisconsin
Added to Troutnut.com by Troutnut on May 24, 2006
Female Ephemerella excrucians (Pale Morning Dun) Mayfly SpinnerFemale Ephemerella excrucians (Pale Morning Dun) Mayfly Spinner View 7 Pictures
Collected August 1, 2020 from the Red Rock Creek in Idaho
Added to Troutnut.com by Troutnut on August 18, 2020
Baetisca laurentina (Armored Mayfly) Mayfly NymphBaetisca laurentina (Armored Mayfly) Mayfly Nymph View 6 Pictures
Collected June 1, 2005 from the Bois Brule River in Wisconsin
Added to Troutnut.com by Troutnut on May 24, 2006
Ameletus (Brown Duns) Mayfly NymphAmeletus (Brown Duns) Mayfly Nymph View 7 PicturesI think this is a pretty early instar (Instar: Many invertebrates molt through dozens of progressively larger and better-developed stages as they grow. Each of these stages is known as an instar. Hard-bodied nymphs typically molt through more instars than soft-bodied larvae.) Ameletus nymph. It's certainly a striking one.
Collected May 6, 2007 from Mongaup Creek in New York
Added to Troutnut.com by Troutnut on May 18, 2007
Diphetor hageni (Little Blue-Winged Olive) Mayfly NymphDiphetor hageni (Little Blue-Winged Olive) Mayfly Nymph View 6 Pictures
Collected July 25, 2019 from Mystery Creek #249 in Washington
Added to Troutnut.com by Troutnut on July 26, 2019
Specimen Page:1...585960...84
Top 10 Fly Hatches
BaetisBaetidaeEphemerellidaeHexagenia limbataChironomidaeHeptageniidaeEphemerella subvariaEphemerellaIsonychiaHydropsychidae
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