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Ephemerella needhami (Little Dark Hendrickson) Mayfly Nymph Pictures

Classification
Kingdom Animalia (Animals)
» Phylum Arthropoda (Arthropods)
» Class Insecta (Insects)
» Order Ephemeroptera (Mayflies)
» Family Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs)
» Genus Ephemerella (Hendricksons, Sulphurs, PMDs)
» Species needhami (Little Dark Hendrickson)
 This specimen strikingly resembles another specimen from about 1300 miles away in the Catskills, which I tentatively called Ephemerella aurivillii. This one has much more prominent abdominal tubercles (
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A few (not all) of the abdominal tubercles on this Ephemerella needhami nymph are circled. They are especially large in this species.
A few (not all) of the abdominal tubercles on this Ephemerella needhami nymph are circled. They are especially large in this species.
Tubercle: Various peculiar little bumps or projections on an insect. Their character is important for the identification of many kinds of insects, such as the nymphs of Ephemerellidae mayflies.). It may be that they're both the same species and I don't have my identifications straight.

This mayfly was collected from the Upper Midwest on June 5th, 2005 and added to Troutnut.com on May 25th, 2006.

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CameraCanon EOS 20D
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CameraCanon EOS 20D
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CameraCanon EOS 20D
View Full SizeView Full Size (2.7X larger)
AddEmail
CameraCanon EOS 20D
View Full SizeView Full Size (2.7X larger)
AddEmail
CameraCanon EOS 20D

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