Mexican Yellow
Eurema mexicana (Boisduval, 1836)
Family: Pieridae
Subfamily: Coliadinae
Identification: Upper surface is creamy white with indented black borders which outline a "dog's head" on forewings; more pronounced in male. Hindwing with projecting tail-like points.
Wing Span: 1 3/4 - 2 1/2 inches (4.4 - 6.3 cm).
Life History: None reported.
Flight: Midsummer to fall as vagrant, all year in tropics.
Caterpillar Hosts: Acacia and Diphysa in the pea family (Fabaceae).
Adult Food: Nectar from a wide variety of flowers.
Habitat: Open, dry areas Found in moister areas in Mexico and Central America.
Range: Resident from Central America north to South Texas and the Southwest; common vagrant in Great Plains and Southwest deserts; rare migrant to Mississippi, Arkansas, Illinois, and Michigan.
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
Alternate Scientific Names:
Eurema mexicanum
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Verified Sightings
Displaying 1 - 24 of 567 verified sightings
Observation date: Sep 20, 2024
Submitted by: bentert
Region: Pima County, Arizona, United States
Verified by: John Saba
Verified date: Jul 03, 2025
Observation date: Apr 28, 2024
Submitted by: hasfitz5
Region: Cochise County, Arizona, United States
Verified by: John Saba
Verified date: May 18, 2025
Observation date: Jun 15, 2024
Submitted by: Joshua C
Region: Colfax County, New Mexico, United States
Verified by: stevecary
Verified date: Feb 19, 2025
Observation date: Jul 14, 2023
Submitted by: billd
Region: Garfield County, Oklahoma, United States
Verified by: Emily Geest
Verified date: Jan 06, 2025
Observation date: Oct 05, 2024
Submitted by: jrmbutterfly
Region: Santa Cruz County, Arizona, United States
Verified by: jwileyrains
Verified date: Dec 06, 2024
Observation date: Oct 05, 2024
Submitted by: jrmbutterfly
Region: Santa Cruz County, Arizona, United States
Verified by: jwileyrains
Verified date: Dec 05, 2024
Observation date: Oct 05, 2024
Submitted by: jrmbutterfly
Region: Santa Cruz County, Arizona, United States
Verified by: jwileyrains
Verified date: Dec 05, 2024
Observation date: Oct 07, 2024
Submitted by: jrmbutterfly
Region: Santa Cruz County, Arizona, United States
Verified by: jwileyrains
Verified date: Dec 04, 2024
Observation date: Oct 12, 2024
Submitted by: jrmbutterfly
Region: Pima County, Arizona, United States
Verified by: jwileyrains
Verified date: Dec 04, 2024
Observation date: Oct 12, 2024
Submitted by: jrmbutterfly
Region: Pima County, Arizona, United States
Verified by: jwileyrains
Verified date: Dec 04, 2024
Observation date: Oct 13, 2024
Submitted by: jrmbutterfly
Region: Santa Cruz County, Arizona, United States
Verified by: jwileyrains
Verified date: Dec 04, 2024
Observation date: Oct 13, 2024
Submitted by: jrmbutterfly
Region: Santa Cruz County, Arizona, United States
Verified by: jwileyrains
Verified date: Dec 04, 2024
Observation date: Oct 13, 2024
Submitted by: jrmbutterfly
Region: Santa Cruz County, Arizona, United States
Verified by: jwileyrains
Verified date: Dec 04, 2024
Observation date: Oct 13, 2024
Submitted by: jrmbutterfly
Region: Santa Cruz County, Arizona, United States
Verified by: jwileyrains
Verified date: Dec 02, 2024
Observation date: Oct 16, 2024
Submitted by: jrmbutterfly
Region: Santa Cruz County, Arizona, United States
Verified by: jwileyrains
Verified date: Dec 02, 2024
Observation date: Oct 16, 2024
Submitted by: jrmbutterfly
Region: Santa Cruz County, Arizona, United States
Verified by: jwileyrains
Verified date: Dec 02, 2024
Observation date: Oct 16, 2024
Submitted by: jrmbutterfly
Region: Santa Cruz County, Arizona, United States
Verified by: jwileyrains
Verified date: Dec 02, 2024
Observation date: Oct 16, 2024
Submitted by: jrmbutterfly
Region: Santa Cruz County, Arizona, United States
Verified by: jwileyrains
Verified date: Dec 02, 2024
Observation date: Oct 21, 2024
Submitted by: jrmbutterfly
Region: Santa Cruz County, Arizona, United States
Verified by: jwileyrains
Verified date: Dec 01, 2024
Observation date: Oct 21, 2024
Submitted by: jrmbutterfly
Region: Santa Cruz County, Arizona, United States
Verified by: jwileyrains
Verified date: Dec 01, 2024
Observation date: Oct 21, 2024
Submitted by: jrmbutterfly
Region: Santa Cruz County, Arizona, United States
Verified by: jwileyrains
Verified date: Dec 01, 2024
Observation date: Sep 02, 2024
Submitted by: hasfitz5
Region: Cochise County, Arizona, United States
Verified by: jwileyrains
Verified date: Oct 11, 2024
Observation date: Sep 12, 2024
Submitted by: bentert
Region: Pima County, Arizona, United States
Verified by: John Saba
Verified date: Oct 09, 2024
Observation date: Sep 03, 2024
Submitted by: hasfitz5
Region: Cochise County, Arizona, United States
Verified by: John Saba
Verified date: Oct 09, 2024
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