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Stylurus scudderi
Zebra Clubtail

(Selys, 1873)
Gomphidae, Clubtail Family
photo of Male zebra clubtail
Male zebra clubtail — Dan Jackson
Status-Global/State:
Global: G4 Wisconsin: S3
Distinguishing Characteristics:
This stocky blackish dragonfly with yellow ringed abdomen is about 2.2 inches long. The thorax has some yellow stripes, near shoulders. There are small yellow spots along the abdomen. A male is easily identified by its leaf-like expansions on its club's segments edged with yellow. The female's abdomen is very stout and clubless.
Description of Habitat/Range:
Common throughout northeastern United States and southeastern Canada, this species is usually found in forest streams with intermittent rapids, including trout streams with sandy/mucky bottoms. Females are reclusive and rarely seen. In Wisconsin, it is widespread, but found infrequently, throughout northern two-thirds of the state.
Flight Season:
Late June to late September in Wisconsin.
(Click on photos to enlarge)
photo of Male zebra clubtail
Male zebra clubtail — Dan Jackson
photo of Male zebra clubtail
Male zebra clubtail — Dan Jackson
photo of Male zebra clubtail
Male zebra clubtail — Jim Lind
photo of Close-up of male zebra clubtail face
Close-up of male zebra clubtail face — Dan Jackson
photo of Close-up of male zebra clubtail thorax
Close-up of male zebra clubtail thorax — Dan Jackson
photo of Side (top image) and top view of male zebra clubtail cerci
Side (top image) and top view of male zebra clubtail cerci — Dan Jackson
photo of Female zebra clubtail
Female zebra clubtail — R. DuBois
photo of Female zebra clubtail
Female zebra clubtail — Clint Anderson
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