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We depend on donations to keep Butterflies and Moths of North America online and free. If everyone who uses this resource makes a donation, we could cover our ongoing costs, develop new features, upgrade the system, and maybe even remove those pesky ads. Please make a one-time or recurring donation to show your support for this valuable source of information. Thank you!
Giant White
Ganyra josephina (Godart, 1819)
Family: Pieridae
Subfamily: Pierinae
Identification: Large. Cell of upper forewing of male contains prominent round black spot. Wet-season female has black cell spot and also diffuse black postmedian spots. Veins outlined with black near wing margins. Dry-season female not so prominently marked.
Wing Span: 2 7/8 - 3 3/4 inches (7.3 - 9.6 cm).
Life History: Female lays single eggs on older host plant leaves, which the caterpillars then eat.
Flight: From September-December in south Texas.
Caterpillar Hosts: Trees in the caper (Capparidaceae) family.
Adult Food: Flower nectar including lantana, eupatorium, and bougainvilla.
Habitat: Open, dry, subtropical forests.
Range: South from south Texas through Mexico and Central America. A rare stray to Kansas and New Mexico.
Conservation: Not required for periodic stray.
NCGR: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
Management Needs: None noted.
Comments: NULL
Pollinator Week was June 20-26, 2022!
Butterflies and moths are accidental pollinators of many flowering plants. While most species do not have special structures to carry pollen, they do brush against pollen and transfer it to other flowers.
Did you know? The Eastern Tailed-Blue (Cupido comyntas) flies close to the ground and uses its short proboscis to probe flowers of wild strawberry, white sweet clover, and other low-lying plants.
Verified Sightings
Displaying 25 - 34 of 34 verified sightings

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: Harris County, Texas, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004

Observation date: unknown
Submitted by: legacy.reporter
Region: Nuevo Leon, Mexico
Verified by: legacy.verifier
Verified date: Dec 31, 2004

Observation date: unknown
Submitted by: legacy.reporter
Region: Galveston County, Texas, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004

Observation date: unknown
Submitted by: legacy.reporter
Region: Bexar County, Texas, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004

Observation date: unknown
Submitted by: legacy.reporter
Region: Cameron County, Texas, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004

Observation date: unknown
Submitted by: legacy.reporter
Region: Tamaulipas, Mexico
Verified by: legacy.verifier
Verified date: Dec 31, 2004

Observation date: unknown
Submitted by: legacy.reporter
Region: Texas, San Patricio County, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004

Observation date: unknown
Submitted by: legacy.reporter
Region: Sonora, Mexico
Verified by: legacy.verifier
Verified date: Dec 31, 2004

Observation date: unknown
Submitted by: legacy.reporter
Region: Texas, Starr County, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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