Flight season: early May to late August.
Population: not uncommon, widespread and can be found at most local marshes but
encountered less frequently than the Belted Whiteface.
Length: about 30 mm.
The average Frosted Whiteface tends to be a bit shorter and more robust than the Belted Whiteface.
Best separated by the epiprocts and hamules (males) or subgenital plates (females).
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East of Tweed, Ontario, near the old railroad (trans-Canada Trail) bridge over the Moira River:
rock-bottomed river, fast current, shrubs and trees along the shoreline.
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Male Frosted Whiteface (Leucorrhinia frigida) –
followed by an image with notes regarding the wing venation; compare to the annotated image of the
Belted Whiteface.
Wing vention doesn't appear to be a hundred percent reliable, note that this individual has a row of three cells on its right hand forewing
(June 05, 2011).
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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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Images of an immature male Frosted Whiteface (Leucorrhinia frigida) –
there are few or no black markings on the sides of the thorax;
compare to the more "marbled" appearance of the Belted Whiteface
(June 27, 2012).
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The inner and outer parts of the hamules are joined by a ridge
(June 27, 2012).
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Northeast of Tweed on Highway 7, near Studio 737:
sunlit forest clearing with shrubs, tall grasses and wildflowers.
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Female Frosted Whiteface (Leucorrhinia frigida)
June 19, 2011
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