Broad-winged Damselflies
Family Calopterygidae
Genus Calopteryx
Ebony Jewelwing (Calopteryx maculata)



Similar species – female River Jewelwing (Calopteryx aequabilis).


Flight season: late May to late September.

Population: common, also found at the Vanderwater Conservation Area, and a spring fed stream north of Tyendinaga Cavern and Caves.

Length: about 55 mm. In the field females are easily distinguished from males by their white pseudo-pterostigmata. The female Ebony Jewelwing is separated from the female River Jewelwing by its relatively broad wings and dark labrum.


Tweed, Ontario, an unused lot near the Louisa St. bridge over the Moira River: rock-bottomed river with fast flowing water, rapids and emergent rocks. An untended lot along the shoreline supports tall grasses, wildflowers and some trees.
Male Ebony Jewelwing (Calopteryx maculata)
June 25, 2009


Tweed, Ontario, the Moira River near the walking bridge and dam: rock-bottomed river with fast flowing water, rapids and emergent rocks, but also quiet pools and backwaters. The shoreline vegetation is mostly trees with a few small clearings supporting tall grasses and wildflowers.
Female Ebony Jewelwing (Calopteryx maculata)
July 14, 2010


Tweed, Ontario, the Moira River, east of town near Collin's Point: rock-bottomed river with fast flowing water, rapids and emergent rocks, the shoreline vegetation consists of wooded areas and clearings supporting tall grasses and wildflowers.
Ebony Jewelwing (Calopteryx maculata), courtship display
August 20, 2013
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Ebony Jewelwing (Calopteryx maculata), tandem
June 17, 2016