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Species Detail
Swamp Metalmark
Calephelis muticum McAlpine, 1937
Attributes of Calephelis muticumFamily: Metalmarks (Riodinidae) Identification: Male with pointed forewing. Upperside of both sexes bright red-brown; dark median band not evident. Wing fringes lightly checkered. Life history: Eggs are laid singly on underside of host plant leaves, which the caterpillars eat. Fourth and fifth stage caterpillars overwinter. Flight: One flight from June-August in the Great Lakes region, two flights from May-September in the south. Wing span: 15/16 - 1 3/16 inches (2.4 - 3 cm). Caterpillar hosts: Swamp thistle (Cirsium muticum) and roadside thistle (C. altissimum). Adult food: Nectar from yellow flowers including black-eyed susans. Habitat: Bogs, marshes, swamps, wet meadows. Range: Populations in southern Michigan, southern Wisconsin, Ohio, Missouri, and northern Arkansas. Isolated populations in central Kentucky and eastern Iowa. Conservation: Isolated populations should be conserved wherever found. NatureServe Global Status: G4 - Apparently secure globally, though it might be quite rare in parts of its range, especially at the periphery. Management needs: None reported. | Documented Records for Calephelis muticum
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