Wisconsin Odonata Survey

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Dromogomphus spinosus  Selys, 1854
Black-shouldered Spinyleg


Gomphidae, Clubtail Family

Status-Global/State:

Global: G5     Wisconsin: S4    

Distinguishing Characteristics:

This yellowish dragonfly is rather large with wide black shoulder bands and black abdomen with yellow marks. It is easily recognized by the unusually long spines on the back legs.

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:

In Wisconsin, the typical flight season is early June to late August.


Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
1%
(11)
76%
(628)
17%
(139)
5%
(40)
1%
(7)
<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 black-shouldered spinyleg
Male black-shouldered spinyleg. © Dan Jackson

Male black-shouldered spinyleg
Photo of Male black-shouldered spinyleg
Male black-shouldered spinyleg. © Dan Jackson

Male black-shouldered spinyleg
Photo of Male black-shouldered spinyleg
Male black-shouldered spinyleg. © Jim Lind

Male black-shouldered spinyleg
Photo of Male black-shouldered spinyleg
Male black-shouldered spinyleg. © Jim Lind

Male black-shouldered spinyleg
Photo of Female black-shouldered spinyleg
Female black-shouldered spinyleg. © Dan Jackson

Female black-shouldered spinyleg
Photo of Female black-shouldered spinyleg
Female black-shouldered spinyleg. © R. DuBois

Female black-shouldered spinyleg
Photo of Immature female black-shouldered spinyleg
Immature female black-shouldered spinyleg. © Dan Jackson

Immature female black-shouldered spinyleg



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