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Hylogomphus adelphus
Mustached Clubtail

(Selys, 1858)
Gomphidae, Clubtail Family
photo of Male mustached clubtail
Male mustached clubtail — Dan Jackson
Status-Global/State:
Global: G4 Wisconsin: S3S4
Distinguishing Characteristics:
This stocky yellow-green dragonfly, with black shoulder markings, varies in length from 1.7 to 1.8 inches. The male's abdomen is almost entirely black with small yellow markings. The female's abdomen is similar but the end is edged with yellow. Clubtail species are very similar to each other in some aspects; careful inspection is needed to identify them.
Description of Habitat/Range:
Common throughout eastern United States and southeastern Canada, this species is usually found at medium to large rapid streams, rivers, windswept lakes and ponds with rocky shores. It is widely distributed throughout northern two-thirds of Wisconsin.
Flight Season:
Late May to mid-August in Wisconsin.
(Click on photos to enlarge)
photo of Male mustached clubtail
Male mustached clubtail — Dan Jackson
photo of Male mustached clubtail
Male mustached clubtail — Dan Jackson
photo of Male mustached clubtail
Male mustached clubtail — Dan Jackson
photo of Side (top image) and top view of cercus for male mustached clubtail
Side (top image) and top view of cercus for male mustached clubtail — Dan Jackson
photo of Female mustached clubtail
Female mustached clubtail — Dan Jackson
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