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Mayfly Species Ephemerella aurivillii

Pictures Below

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

  • The behavior and habitat of Ephemerella aurivillii.

Pictures of 18 Mayfly Specimens in the Species Ephemerella aurivillii:

Specimen Page:123
Male Ephemerella aurivillii Mayfly DunMale Ephemerella aurivillii  Mayfly Dun View 9 PicturesThis dun hatched in my aquarium on July 16th from an easily identified nymph collected on July 10th, and it molted into a spinner after I photographed it. The beautiful spinner form is listed as separate specimen. I forgot to photograph the dun with the ruler, but naturally his size is pretty similar to what it was as a spinner.
Collected July 10, 2011 from Nome Creek in Alaska
Added to Troutnut.com by Troutnut on July 16, 2011
Ephemerella aurivillii Mayfly NymphEphemerella aurivillii  Mayfly Nymph View 9 PicturesI'm pretty sure this is Ephemerella aurivillii. The body is 11mm long, which rules out most other species, and the hind legs seem to be more than 1.5 times longer than the fore legs -- a key characteristic for this species.

This specimen isn't in the best of shape, as it's missing all three tails, but it's the only one of its species I captured in this sample.
Collected May 6, 2007 from Mongaup Creek in New York
Added to Troutnut.com by Troutnut on May 18, 2007
Female Ephemerella aurivillii Mayfly DunFemale Ephemerella aurivillii  Mayfly Dun View 5 PicturesThis dun hatched out in my aquarium from this nymph.
Collected July 10, 2011 from Nome Creek in Alaska
Added to Troutnut.com by Troutnut on July 13, 2011
Ephemerella aurivillii Mayfly NymphEphemerella aurivillii  Mayfly Nymph View 4 Pictures
Collected July 10, 2011 from Nome Creek in Alaska
Added to Troutnut.com by Troutnut on July 13, 2011
Ephemerella aurivillii Mayfly NymphEphemerella aurivillii  Mayfly Nymph View 5 PicturesThis nymph hatched out in my aquarium into this dun.
Collected July 10, 2011 from Nome Creek in Alaska
Added to Troutnut.com by Troutnut on July 13, 2011
Specimen Page:123
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