Wisconsin Odonata Survey title graphic Wisconsin Odonata Survey graphic Wisconsin Odonata Survey graphic Wisconsin Odonata Survey graphic Wisconsin Odonata Survey graphic

Phanogomphus graslinellus
Pronghorn Clubtail

(Walsh, 1862)
Gomphidae, Clubtail Family
photo of Male pronghorn clubtail
Male pronghorn clubtail — Dan Jackson
Status-Global/State:
Global: G5 Wisconsin: S2S3
Distinguishing Characteristics:
This strikingly marked, green and brown striped clubtail has a black abdomen marked with yellow. The length of the body varies from 1.8 to 2.1 inches. It is similar to some other clubtails so a careful inspection is needed. Clubtail species are very similar to each other in some aspects, careful inspection is needed to identify them.
Description of Habitat/Range:
It is mainly found throughout central United States and south central Canada. It is usually found at ponds, lakes and slow streams. Infrequently found in Wisconsin, it is only known from few northwestern and southern counties.
Flight Season:
Mid-June to early August in Wisconsin.
(Click on photos to enlarge)
photo of Male pronghorn clubtail
Male pronghorn clubtail — Dan Jackson
photo of Male pronghorn clubtail
Male pronghorn clubtail — Dan Jackson
photo of Close-up of male pronghorn clubtail thorax
Close-up of male pronghorn clubtail thorax — Dan Jackson
photo of Close-up of male pronghorn clubtail face
Close-up of male pronghorn clubtail face — Dan Jackson
photo of Side (top image) and top view of cercus for male pronghorn clubtail
Side (top image) and top view of cercus for male pronghorn clubtail — Dan Jackson
photo of Female pronghorn clubtail
Female pronghorn clubtail — Dan Jackson
This site is produced in conjunction with the Wisconsin Aquatic and Terrestrial Resources Inventory and sponsored by the Wisconsin Department of Natural Resources. The information presented on this site is subject to the Wisconsin Department of Natural Resources' Legal Notices, Disclaimers, and Terms of Use.