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Drunella flavilinea (Flav) Mayfly Nymph Pictures

 Although the identification is not certain because the nymph is not yet mature, the configuration of 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 this one--particularly the forefemora--seems to best match Drunella flavilinea.


This mayfly was collected from the Gallatin River on July 2nd, 2019 and added to Troutnut.com on July 18th, 2019.


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