Franck's sphinx
Sphinx franckii Neumoegen, 1893
Family: Sphingidae
Subfamily: Sphinginae
Identification: Forewing is gray along the costal half, yellowish brown on the rest of the wing; with black dashes and a black line along the outer margin. Hindwing is black with a narrow brown median band and base.
Wing Span: 3 15/16 - 5 1/16 inches (10 - 12.8 cm).
Life History: Females lay eggs singly on the host plant. Newly-hatched caterpillars eat at least part of their eggshells. Fully-grown caterpillars pupate in underground cells.
Flight: . One flight from June-July in the north, sometimes a partial second brood from August-September in the south.
Caterpillar Hosts: Elms (Ulmus) and ashes (Fraxinus).
Adult Food: Probably flower nectar.
Habitat: Not reported.
Range: New York south to northern Florida, west to Missouri and Louisiana.
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 25 - 48 of 73 verified sightings
Observation date: Jun 19, 1972
Submitted by: legacy.reporter (Reickard, Arnold)
Region: Clinton County, Missouri, United States
Verified by: legacy.verifier (Phillip Koenig; Heitzman, J.R.)
Verified date: Mar 11, 2009
Observation date: Jan 01, 1893
Submitted by: legacy.reporter (Franck, George)
Region: Jackson County, Missouri, United States
Verified by: Phillip E. Koenig (Phillip Koenig)
Verified date: Mar 11, 2009
Observation date: May 26, 2003
Submitted by: legacy.reporter (Tom Smith)
Region: Colleton County, South Carolina, United States
Verified by: legacy.verifier (The Lepidopterists' Society Season Summary)
Verified date: Jul 25, 2008
Observation date: Jan 01, 1970
Submitted by: legacy.reporter (Richard B. Dominick Moth and Butterfly Collection)
Region: Charleston County, South Carolina, United States
Verified by: legacy.verifier (Dr. F. Lance Wallace of The Citadel, Charleston SC)
Verified date: Dec 10, 2007
Observation date: unknown
Submitted by: legacy.reporter
Region: Hunterdon County, New Jersey, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Kanawha County, West Virginia, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Liberty County, Florida, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Caldwell County, Kentucky, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Owsley County, Kentucky, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Jackson County, Missouri, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Charleston County, South Carolina, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Clark County, Illinois, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Knott County, Kentucky, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Russell County, Kentucky, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Hinds County, Mississippi, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Warren County, Mississippi, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Boone County, West Virginia, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: New Castle County, Delaware, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Brown County, Indiana, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Muhlenberg County, Kentucky, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Carroll County, Missouri, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Philadelphia County, Pennsylvania, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Monongalia County, West Virginia, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Georgia, Walker County, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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