Lyside Sulphur
Kricogonia lyside (Godart, 1819)
Family: Pieridae
Subfamily: Coliadinae
Identification: Tip of forewing square-shaped. Upperside forewing of male white with yellow basal area; often with vertical black bar at wing edge. Underside of hindwing has raised veins and satin sheen. Females occur in both yellow and white forms. Both sexes are extremely variable.
Wing Span: 1 1/2 - 2 3/8 inches (3.8 - 6 cm).
Life History: Caterpillars hide in bark crevices during the day, and come out to feed at night. Adults periodically make huge migrations.
Flight: Throughout the year in South Texas, April-August in Florida and to the north and east.
Caterpillar Hosts: Plants in the Zygophyllaceae family vitae (Guaiacum sanctum) in southern Florida and Porliera angustifolia in Texas.
Adult Food: Flowers of black mangrove and shepherd\'s needle have been used as nectar sources in southern Florida.
Habitat: Tropical scrub lowlands and seasonally dry forests.
Range: Venezuela north to southern Texas, where it occurs in great numbers. Rare in southern Florida; strays to Colorado, Nebraska, Kentucky, and other states.
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.
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Verified Sightings
Displaying 1 - 24 of 357 verified sightings
Observation date: Jun 20, 2025
Submitted by: joeschelling
Region: Torrance County, New Mexico, United States
Verified by: stevecary
Verified date: Jun 22, 2025
Observation date: Apr 27, 2025
Submitted by: Sue Bocchicchio
Region: Monroe County, Florida, United States
Verified by: John Calhoun
Verified date: Apr 27, 2025
Observation date: May 07, 2023
Submitted by: Blablancwillis
Region: Douglas County, Kansas, United States
Verified by: James Steen
Verified date: Mar 30, 2025
Observation date: Feb 17, 2025
Submitted by: hiker96
Region: Monroe County, Florida, United States
Verified by: John Calhoun
Verified date: Feb 23, 2025
Observation date: Nov 20, 2024
Submitted by: Nick Elf
Region: Costa Rica
Verified by: Charlie Doggett
Verified date: Feb 21, 2025
Observation date: Oct 05, 2024
Submitted by: jrmbutterfly
Region: Santa Cruz County, Arizona, United States
Verified by: jwileyrains
Verified date: Dec 10, 2024
Observation date: Sep 17, 2024
Submitted by: Mary Scott
Region: Pima County, Arizona, United States
Verified by: John Saba
Verified date: Dec 06, 2024
Observation date: Nov 14, 2024
Submitted by: Mary Scott
Region: Pima County, Arizona, United States
Verified by: John Saba
Verified date: Dec 06, 2024
Observation date: Dec 03, 2024
Submitted by: Mary Scott
Region: Pima County, Arizona, United States
Verified by: John Saba
Verified date: Dec 06, 2024
Observation date: Oct 24, 2024
Submitted by: jamesvonloh
Region: Doña Ana County, New Mexico, United States
Verified by: stevecary
Verified date: Nov 04, 2024
Observation date: Feb 23, 2024
Submitted by: dvollmar
Region: Cameron County, Texas, United States
Verified by: jwileyrains
Verified date: Aug 11, 2024
Observation date: Jul 15, 2024
Submitted by: theskyeworld
Region: Bastrop County, Texas, United States
Verified by: jwileyrains
Verified date: Jul 15, 2024
Observation date: Apr 29, 2024
Submitted by: jrmbutterfly
Region: Texas, Nueces County, United States
Verified by: jwileyrains
Verified date: May 01, 2024
Observation date: Apr 29, 2024
Submitted by: jrmbutterfly
Region: Texas, Nueces County, United States
Verified by: jwileyrains
Verified date: May 01, 2024
Observation date: Apr 29, 2024
Submitted by: jrmbutterfly
Region: Texas, Nueces County, United States
Verified by: jwileyrains
Verified date: May 01, 2024
Observation date: Apr 27, 2024
Submitted by: Joseph Miller
Region: Morton County, Kansas, United States
Verified by: James Steen
Verified date: Apr 28, 2024
Observation date: Nov 28, 2023
Submitted by: jrmbutterfly
Region: Pima County, Arizona, United States
Verified by: John Saba
Verified date: Nov 28, 2023
Observation date: Nov 28, 2023
Submitted by: jrmbutterfly
Region: Pima County, Arizona, United States
Verified by: John Saba
Verified date: Nov 28, 2023
Observation date: Jun 14, 2017
Submitted by: ridgeboy
Region: Monroe County, Florida, United States
Verified by: John Calhoun
Verified date: Sep 29, 2023
Observation date: Feb 24, 2023
Submitted by: bonfrey
Region: Hidalgo County, Texas, United States
Verified by: jwileyrains
Verified date: Aug 25, 2023
Observation date: Jul 12, 2023
Submitted by: Marta Reece
Region: Otero County, New Mexico, United States
Verified by: stevecary
Verified date: Jul 22, 2023
Observation date: Apr 21, 2023
Submitted by: Sue Bocchicchio
Region: Monroe County, Florida, United States
Verified by: John Calhoun
Verified date: Apr 22, 2023
Observation date: Mar 15, 2023
Submitted by: Sue Bocchicchio
Region: Monroe County, Florida, United States
Verified by: John Calhoun
Verified date: Mar 21, 2023
Observation date: Mar 12, 2023
Submitted by: Sue Bocchicchio
Region: Monroe County, Florida, United States
Verified by: John Calhoun
Verified date: Mar 12, 2023
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