Mottled Duskywing
Erynnis martialis (Scudder, [1870])
Family: Hesperiidae
Subfamily: Pyrginae
Identification: Upperside bands contribute to the mottled appearance of both wings. Freshly-emerged butterflies have a purplish iridescence. Male has a costal fold containing yellow scent scales; female has a patch of scent scales on the 7th abdominal segment.
Wing Span: 1 1/8 - 1 5/8 inches (2.9 - 4.2 cm).
Life History: To wait for females, males perch and patrol on ridges and hills during the day, sitting on the ground or on tips of twigs. Females deposit eggs singly on the host plant. Fully-grown caterpillars hibernate.
Flight: Two broods from April-September.
Caterpillar Hosts: Wild lilacs including New Jersey tea (Ceanothus americanus) and redroot (Ceanothus herbaceus var. pubescens) in the buckthorn family (Rhamnaceae).
Adult Food: Nectar from flowers of bush houstonia, gromwell, hoary vervain, and other plants.
Habitat: Open woodland, barrens, prairie hills, open brushy fields, chaparral.
Range: Massachusetts and southern Ontario west across the Great Lake states to Minnesota; south to South Carolina, the Gulf Coast, and central Texas. Isolated populations in eastern Wyoming, eastern Colorado, and western South Dakota.
Conservation: Not usually required.
NCGR: G4 - Apparently secure globally, though it might be quite rare in parts of its range, especially at the periphery.
Management Needs: None reported.
Comments: NULL
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Verified Sightings
Displaying 121 - 144 of 477 verified sightings
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Region: Georgia, Screven County, United States
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Verified date: Dec 31, 2004
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Region: Ellis County, Kansas, United States
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Region: Oakland County, Michigan, United States
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Region: Perry County, Mississippi, United States
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Region: Albany County, New York, United States
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Region: Tulsa County, Oklahoma, United States
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Region: Bastrop County, Texas, United States
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Region: Miller County, Arkansas, United States
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Region: Fremont County, Iowa, United States
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Region: Chase County, Kansas, United States
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Region: Aitkin County, Minnesota, United States
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Region: Caswell County, North Carolina, United States
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Region: Essex County, New York, United States
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Region: Bradford County, Pennsylvania, United States
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Verified date: Dec 31, 2004
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Region: Texas, Lampasas County, United States
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Verified date: Dec 31, 2004
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Region: Boulder County, Colorado, United States
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Region: Polk County, Iowa, United States
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Region: LaRue County, Kentucky, United States
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Region: Winona County, Minnesota, United States
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Verified date: Dec 31, 2004
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Region: Moore County, North Carolina, United States
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Verified date: Dec 31, 2004
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Region: Niagara County, New York, United States
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Verified date: Dec 31, 2004
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Region: Lebanon County, Pennsylvania, United States
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Verified date: Dec 31, 2004
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Region: Juneau County, Wisconsin, United States
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Verified date: Dec 31, 2004
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Region: El Paso County, Colorado, United States
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Verified date: Dec 31, 2004
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