Clark's sphinx
Proserpinus clarkiae (Boisduval, 1852)
Family: Sphingidae
Subfamily: Macroglossinae
Identification: Forewing upperside is greenish gray; median area may be dark or pale. Hindwing upperside is bright orangish yellow with black borders.
Wing Span: 1 3/8 - 1 3/4 inches (3 - 3.8 cm).
Life History: Eggs hatch about 10 days after the female deposits them on the host plant, and the newly-hatched caterpillars eat their eggshells. Fully-grown caterpillars pupate and overwinter in burrows dug under stones and other solid objects. Adults fly during the day, especially in the afternoon.
Flight: . One brood from April-June.
Caterpillar Hosts: Elegant fairyfan (Clarkia unguiculata) in the evening primrose family (Onagraceae).
Adult Food: Nectar from flowers including chia (Salvia columbariae), heartleaf milkweed (Asclepias cordifolia), golden currant (Ribes aureum), bluedicks (Dichelostemma capitatum), fairyfans (Clarkia), vetches (Vicia), thistles (Cirsium), and hedgenettles (Stachys).
Habitat: Oak woodland and pine-oak woodland in foothills.
Range: British Columbia and Washington south through California to Baja California Norte, east to Idaho, Wyoming, and Utah.
Conservation: Not usually required.
NCGR: G5 - Demonstrably secure globally, though it may 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 49 - 72 of 104 verified sightings
Observation date: unknown
Submitted by: legacy.reporter
Region: El Dorado County, California, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Region: Storey County, Nevada, United States
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Verified date: Dec 31, 2004
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Region: Marin County, California, United States
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Verified date: Dec 31, 2004
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Region: Marion County, Oregon, United States
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Verified date: Dec 31, 2004
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Submitted by: legacy.reporter
Region: Placer County, California, United States
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Verified date: Dec 31, 2004
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Region: Tooele County, Utah, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Submitted by: legacy.reporter
Region: Santa Cruz County, California, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Submitted by: legacy.reporter
Region: Yakima County, Washington, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Region: Tuolumne County, California, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Submitted by: legacy.reporter
Region: Latah County, Idaho, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Submitted by: legacy.reporter
Region: Kern County, California, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Submitted by: legacy.reporter
Region: Grant County, Oregon, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Submitted by: legacy.reporter
Region: Modoc County, California, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Submitted by: legacy.reporter
Region: Union County, Oregon, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Submitted by: legacy.reporter
Region: Sacramento County, California, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Submitted by: legacy.reporter
Region: Adams County, Washington, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Region: San Francisco County, California, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Submitted by: legacy.reporter
Region: Pierce County, Washington, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Siskiyou County, California, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Ada County, Idaho, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Calaveras County, California, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Elko County, Nevada, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Los Angeles County, California, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Lane County, Oregon, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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