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Ephemerella aurivillii Mayfly Nymph Pictures



 Close examination under a microscope showed definite small tubercles (
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.
)
on the back of this nymph.


This mayfly was collected from unknown on February 5th, 2004 and added to Troutnut.com on January 25th, 2006.

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Ephemerella aurivillii Mayfly Nymph from unknown in Wisconsin
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Ephemerella aurivillii Mayfly Nymph from unknown in Wisconsin
Shown Full Size
Add
Ephemerella aurivillii Mayfly Nymph from unknown in Wisconsin
Shown Full Size
Add
Ephemerella aurivillii Mayfly Nymph from unknown in Wisconsin

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