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.
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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.
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Male Ebony Jewelwing (Calopteryx maculata)
June 25, 2009
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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.
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Female Ebony Jewelwing (Calopteryx maculata)
July 14, 2010
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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.
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Ebony Jewelwing (Calopteryx maculata), courtship display
August 20, 2013
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Ebony Jewelwing (Calopteryx maculata), tandem
June 17, 2016
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