Wisconsin Odonata Survey


Ladona julia  (Uhler, 1857)
Chalk-fronted Corporal

Libellulidae, Skimmer Family

Species of the genus Libellula (king skimmers) often perch on shoreline vegetation, are stout bodied, and usually have distinctive body and wing patterns.


Global: G5     Wisconsin: S5    

Distinguishing Characteristics:

This species is easily distinguished by the wide pale shoulder bars on top of the thorax that are white in males, gray in females, and tan in juveniles. The male has white on the basal half of the abdomen and the female has a limited amount of white there as well. The wings are clear. The immature chalk-fronted corporals are more of a brownish color. The length of the body varies from 1.6 to 1.8 inches.

Description of Habitat/Range:

Commonly found throughout Canada and northern United States, this species is usually found at ponds, swamps, marshes, lakes, and bogs. It seems to like slow water with emergent vegetation. In Wisconsin, it is abundant and widely distributed throughout the state.

Flight Season:

Early May to early October in Wisconsin, with the peak in the spring.

Shading illustrates monthly percentages of the total flight season records for the species. Each flight season record is a unique date/location/observer combination where one or more adult or an exuvia was recorded (excludes nymphs). The actual number of flight season records for each month is shown in parentheses.

Flight seasons begin earlier in the southern part of the state, often by a week or more. Also, flight charts may not be accurate for rare species because of few data available.
View user-submitted photos

(Click on photos to enlarge)
Photo of Male chalk-fronted corporal
Male chalk-fronted corporal. © Dan Jackson

Photo of Male chalk-fronted corporal
Male chalk-fronted corporal. © Dan Jackson

Photo of Immature male chalk-fronted corporal
Immature male chalk-fronted corporal. © Dan Jackson

Photo of Female chalk-fronted corporal
Female chalk-fronted corporal. © Dan Jackson

Photo of Immature female chalk-fronted corporal
Immature female chalk-fronted corporal. © Dan Jackson

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