Julia Heliconian
Dryas iulia (Fabricius, 1775)
Family: Nymphalidae
Subfamily: Heliconiinae
Identification: Forewings elongate. Male bright orange above and below; upperside of hindwing with narrow black border on outer margin. Female duller orange, with more black markings above.
Wing Span: 3 1/4 - 3 5/8 inches (8.2 - 9.2 cm).
Life History: Males patrol all day for receptive females. Eggs are laid singly on new growth; caterpillars feed on leaves. Adults forage along a set route of nectar sources each day in a behavior known as "trap-lining".
Flight: Throughout the year in southern Florida and South Texas, strays to the north in summer.
Caterpillar Hosts: Passion-vines including Passiflora lutea in Texas.
Adult Food: Nectar from flowers including lantana and shepherd\'s needle; probably others.
Habitat: Subtropical hammock openings and edges, and nearby fields.
Range: Resident in Brazil north through Central America, Mexico, West Indies, peninsular Florida, and South Texas. Strays north to eastern Nebraska.
Conservation: Not usually required, but habitat in South Texas is limited.
NCGR: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
Management Needs: None reported.
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Verified Sightings
Displaying 289 - 312 of 358 verified sightings
Observation date: unknown
Submitted by: legacy.reporter (Derek Muschalek)
Region: DeWitt County, Texas, United States
Verified by: legacy.verifier (Ray Stanford)
Verified date: Dec 28, 2007
Observation date: Oct 25, 2007
Submitted by: legacy.reporter (Berlin Heck)
Region: McCurtain County, Oklahoma, United States
Verified by: nick.grishin (Nick Grishin)
Verified date: Oct 30, 2007
Observation date: Oct 14, 2006
Submitted by: legacy.reporter (Mike Overton, Paul Opler)
Region: Tamaulipas, Mexico
Verified by: legacy.verifier (Mike Overton)
Verified date: Oct 01, 2007
Observation date: Oct 16, 2006
Submitted by: legacy.reporter (Mike Overton, Paul Opler)
Region: Tamaulipas, Mexico
Verified by: legacy.verifier (Mike Overton)
Verified date: Oct 01, 2007
Observation date: Oct 16, 2006
Submitted by: legacy.reporter (Mike Overton, Paul Opler)
Region: Tamaulipas, Mexico
Verified by: legacy.verifier (Mike Overton)
Verified date: Oct 01, 2007
Observation date: Oct 15, 2006
Submitted by: legacy.reporter (Mike Overton, Paul Opler)
Region: Tamaulipas, Mexico
Verified by: legacy.verifier (Mike Overton)
Verified date: Oct 01, 2007
Observation date: Oct 15, 2006
Submitted by: legacy.reporter (Mike Overton, Paul Opler)
Region: San Luis Potosi, Mexico
Verified by: legacy.verifier (Mike Overton)
Verified date: Oct 01, 2007
Observation date: Oct 17, 2006
Submitted by: legacy.reporter (Mike Overton, Paul Opler)
Region: Tamaulipas, Mexico
Verified by: legacy.verifier (Mike Overton)
Verified date: Oct 01, 2007
Observation date: Oct 18, 2006
Submitted by: legacy.reporter (Mike Overton, Paul Opler)
Region: Tamaulipas, Mexico
Verified by: legacy.verifier (Mike Overton)
Verified date: Oct 01, 2007
Observation date: Oct 16, 2006
Submitted by: legacy.reporter (Mike Overton, Paul Opler)
Region: Tamaulipas, Mexico
Verified by: legacy.verifier (Mike Overton)
Verified date: Oct 01, 2007
Observation date: May 18, 2007
Submitted by: legacy.reporter (Don Stillwaugh)
Region: Pinellas County, Florida, United States
Verified by: legacy.verifier (J. Calhoun)
Verified date: Aug 30, 2007
Observation date: Sep 17, 1928
Submitted by: legacy.reporter
Region: Taney County, Missouri, United States
Verified by: legacy.verifier (Kite, V.)
Verified date: Mar 12, 2007
Observation date: unknown
Submitted by: legacy.reporter
Region: Frio County, Texas, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Collier County, Florida, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Texas, Walker County, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Key Largo County, Florida, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Lafayette Parish, Louisiana, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Denton County, Texas, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Bastrop County, Texas, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Bee County, Texas, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Hidalgo County, Texas, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Lee County, Florida, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Calhoun County, Texas, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Sugarloaf Key County, Florida, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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