Wisconsin Odonata Survey

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Leucorrhinia hudsonica  (Selys, 1850)
Hudsonian Whiteface


Libellulidae, Skimmer Family

This genus of small, mostly black, low flyers are easy to identify as whitefaces by their white faces with thin short black hairs, small black basal wing spots, and black legs. They are is similar to Sympetrum species in appearance and behavior in some cases. Because species within this genus are similar-looking and change in appearance as they age, careful observation and considerable practice is required to correctly identify both genders of various ages of all species.

Status-Global/State:

Global: G5     Wisconsin: S4    

Distinguishing Characteristics:

This whiteface is the smallest of the whitefaces and is most extensively colored on the abdomen with red (males) or yellow (females or tenerals). Females occur in two color forms. The abdomen of the yellow form female is black with yellow markings. The red form females would have red spots on the abdomen. The length of the body varies from 1.1 to 1.3 inches.

Description of Habitat/Range:

It is common in southern Canada and northern United States. It is usually found at vegetated ponds, sloughs, sand-bottom lakes, bogs and fens. In Wisconsin, it is frequently found in appropriate habitats throughout the northern two-thirds of the state.

Flight Season:

Early May to late August in Wisconsin.


Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
<1%
(1)
28%
(80)
59%
(169)
11%
(30)
1%
(3)
1%
(2)
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 Hudsonian whiteface
Male Hudsonian whiteface. © Dan Jackson

Male Hudsonian whiteface
Photo of Male Hudsonian whiteface
Male Hudsonian whiteface. © Dan Jackson

Male Hudsonian whiteface
Photo of Teneral male Hudsonian whiteface
Teneral male Hudsonian whiteface. © Dan Jackson

Teneral male Hudsonian whiteface
Photo of Female Hudsonian whiteface
Female Hudsonian whiteface. © Dan Jackson

Female Hudsonian whiteface
Photo of Female Hudsonian whiteface
Female Hudsonian whiteface. © Mike Reese

Female Hudsonian whiteface



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