Flight season: mid-June to early September.
Population: common and widespread.
The greatest numbers occur at the marshy north shore of Stoco Lake
but this small dragonfly can also be found at most local marshes.
Often forages in dry fields a fair distance from water.
Length: about 25 mm.
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Tweed, Ontario, the north shore Stoco Lake, east of the boat pier and near the pavilion:
marshy shoreline, relatively shallow water with mud bottom supporting sedges and rushes, pondweeds, Fragrant Water Lily, Blue Flag, Sagittaria spp and Pickerelweed.
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Male Eastern Amberwing (Perithemis tenera)
July 22, 2010
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Male Eastern Amberwing (Perithemis tenera)
July 18, 2010
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Teneral male Eastern Amberwing (Perithemis tenera)
July 31, 2010
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Female Eastern Amberwing (Perithemis tenera)
August 13, 2009
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Teneral female Eastern Amberwing (Perithemis tenera)
June 15, 2010
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Tweed, Ontario, about ½ km west of town, a marsh bordering the trans-Canada Trail:
typical local marsh with Cattails, sedges and other emergent vegetation, various small willows, alders, dogwoods and some Tamarack.
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Male Eastern Amberwing (Perithemis tenera)
July 22, 2010
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Female Eastern Amberwing (Perithemis tenera)
July 21, 2010
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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 Eastern Amberwing (Perithemis tenera) –
an aberrant individual with male-like wings
(July 19, 2010).
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Stoco Fen, east of Tweed on East Hungerford Road:
relatively little open water compared to a marsh.
Wetland supporting sedges, orchids, Bog Labrador Tea, Pitcher Plants
and other fen indicator species, trees are mainly Tamarack and Eastern White Cedar.
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Female Eastern Amberwing (Perithemis tenera) –
"obelisking", this behavior is believed to be a means of thermoregulation.
With the wings and abdomen pointed toward the sun the body surface area exposed to radiation is minimized.
(July 17, 2011).
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