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Gomphurus ventricosus
Skillet Clubtail

(Walsh, 1863)
Gomphidae, Clubtail Family
photo of Male skillet clubtail
Male skillet clubtail — Dan Jackson
Status-Global/State:
Global: G3 Wisconsin: S3S4
Distinguishing Characteristics:
Named for its very wide club, the skillet clubtail varies in its body length from 1.9 to 2.1 inches. The body is green-yellow with black thoracic stripes and black legs. The abdomen and club are black with yellow markings. Clubtail species are very similar to each other in some aspects, careful inspection is needed to identify them.
Description of Habitat/Range:
Rare throughout northeastern United States and southeastern Canada, this species prefers small to large turbid rivers with at least a partly mud bottom but good water quality. Sometimes it can be found at clean lakes with sand or sand-marl (calcium-rich) bottoms. The skillet clubtail is widely distributed in northern Wisconsin, although not necessarily in abundant numbers.
Flight Season:
Late May to mid-August in Wisconsin.
(Click on photos to enlarge)
photo of Male skillet clubtail
Male skillet clubtail — Dan Jackson
photo of Male skillet clubtail
Male skillet clubtail — Dan Jackson
photo of Close-up of immature male skillet clubtail face
Close-up of immature male skillet clubtail face — Dan Jackson
photo of Side (top image) and top view of immature male skillet clubtail club
Side (top image) and top view of immature male skillet clubtail club — Dan Jackson
photo of Female skillet clubtail
Female skillet clubtail — Dan Jackson
photo of Female skillet clubtail
Female skillet clubtail — Dennis Paulson
photo of Close-up of female skillet clubtail thorax
Close-up of female skillet clubtail thorax — Dan Jackson
photo of Top and bottom view of female skillet clubtail abdomen tip
Top and bottom view of female skillet clubtail abdomen tip — Dan Jackson
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