Flight season: late May to late September.
Population: common, but to date this is the sole local habitat where this species has been encountered.
Length: about 50 mm, a gracile damselfly.
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Tweed, Ontario, the north shore Stoco Lake, east of the boat pier:
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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A male Swamp Spreadwing (Lestes vigilax) and its claspers,
the paraprocts are very long and thin (August 06, 2009).
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An immature male Swamp Spreadwing (Lestes vigilax) – with its colors and markings not yet obscured by pruinosity –
and views of the claspers (July 01, 2010).
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A teneral female Swamp Spreadwing (Lestes vigilax).
Recently emerged spreadwings often hold their wings folded over their backs in the manner of Pond Damselflies
(June 11, 2010).
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Female Swamp Spreadwing (Lestes vigilax)
August 13, 2009
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An older female Swamp Spreadwing (Lestes vigilax) consuming a male Eastern Forktail.
Female Swamp Spreadwings develop a considerably amount of pruinosity with age
(August 19, 2010).
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Swamp Spreadwing (Lestes vigilax), wheel
August 24, 2010
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