Darth Vaders
This common name refers to only one species.
Mayfly Species Serratella deficiens
These are often called Darth Vaders.
Anglers in western Wisconsin, where these little flies hatch in good numbers on summer rivers, have termed them "Darth Vaders" because of the very dark color of their wings.
Serratella deficiens (Darth Vader) Mayfly Nymph
View 6 PicturesThis nymph has tiny, barely detectable tubercles (
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 its abdominal segments, and I could not find the maxillary palpi. I have tentatively guessed that it is Serratella deficiens.
View 6 PicturesThis nymph has tiny, barely detectable tubercles (
View Full SizeA few (not all) of the abdominal tubercles on this Ephemerella needhami nymph are circled. They are especially large in this species.
Region: Upper Midwest
Collected Jun 9, 2005
Added May 26, 2006
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