Regal Fritillary
Speyeria idalia (Drury, 1773)
Family: Nymphalidae
Subfamily: Heliconiinae
Identification: Large. Upperside of forewing bright red-orange with black markings. Upperside of hindwing black with postmedian row of white spots; submarginal row of spots is orange in male and white in female.
Wing Span: 2 5/8 - 4 1/8 inches (6.7 - 10.5 cm).
Life History: Males patrol for females with a low, steady flight. Females walk through vegetation to lay single eggs on various plants, even if the host violets are not present. Most eggs are laid in August. The caterpillars hatch and overwinter unfed; in spring they eat leaves of host plants.
Flight: One brood from mid-June to mid-August.
Caterpillar Hosts: Violets including bird\'s foot violet (Viola pedata).
Adult Food: Nectar from flowers of milkweeds, thistles, red clover, and mountain mint.
Habitat: Tall-grass prairie and other open sites including damp meadows, marshes, wet fields, and mountain pastures.
Range: Tall-grass prairie remnants in Montana and North Dakota south to Colorado, Nebraska, and Oklahoma; rare or absent from former range east of the Appalachians.
Conservation: Rapidly vanishing or declining in much of its range. A species of concern for the United States Fish and Wildlife Service. All populations should be conserved.
NCGR: G3 - Very rare or local throughout its range or found locally in a restricted range (21 to 100 occurrences). (Threatened throughout its range).
Management Needs: Monitor populations and manage populations on public lands and preserves.
Comments: NULL
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Verified Sightings
Displaying 217 - 240 of 873 verified sightings
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Region: York County, Maine, United States
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Verified date: Dec 31, 2004
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Region: Swift County, Minnesota, United States
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Verified date: Dec 31, 2004
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Region: Cass County, North Dakota, United States
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Verified date: Dec 31, 2004
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Region: Nemaha County, Nebraska, United States
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Verified date: Dec 31, 2004
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Region: Deuel County, Nebraska, United States
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Verified date: Dec 31, 2004
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Region: Ashtabula County, Ohio, United States
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Verified date: Dec 31, 2004
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Region: Berks County, Pennsylvania, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Region: Potter County, South Dakota, United States
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Verified date: Dec 31, 2004
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Region: Clark County, South Dakota, United States
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Verified date: Dec 31, 2004
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Region: Roanoke County, Virginia, United States
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Verified date: Dec 31, 2004
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Region: Larimer County, Colorado, United States
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Verified date: Dec 31, 2004
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Region: Johnson County, Iowa, United States
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Verified date: Dec 31, 2004
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Region: Iroquois County, Illinois, United States
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Verified date: Dec 31, 2004
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Region: Clay County, Kansas, United States
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Verified date: Dec 31, 2004
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Region: Wilson County, Kansas, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Region: Iosco County, Michigan, United States
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Verified date: Dec 31, 2004
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Region: Logan County, North Dakota, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Loup County, Nebraska, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Region: Merrimack County, New Hampshire, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Submitted by: legacy.reporter
Region: Defiance County, Ohio, United States
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Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Columbia County, Pennsylvania, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Deuel County, South Dakota, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Green County, Wisconsin, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Tazewell County, Virginia, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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