Southern Dogface
Zerene cesonia (Stoll, 1790)
Family: Pieridae
Subfamily: Coliadinae
Identification: Upperside forewings of both sexes have yellow "dog's head" surrounded by black. "Eye" does not touch black border. Female similar, with duller, more diffuse black areas and 2 seasonal forms: underside hindwing of wet season "summer" form is yellow; that of dry season "winter" form is mottled with black and pink.
Wing Span: 2 1/8 - 3 inches (5.4 - 7.6 cm).
Life History: Males patrol open areas for females. Eggs are laid on the undersides of terminal leaves of host plants. Adults overwinter in reproductive arrest.
Flight: Three flights in the southern states from May-June, July-August, and September-April. Northern colonists have one generation per year, or do not reproduce at all.
Caterpillar Hosts: Small-leaved plants in the pea family (Fabaceae) including alfalfa (Medicago sativa); prairie clovers, indigo (Dalea), and clover (Trifolium) species.
Adult Food: Nectar from flowers including alfalfa, coreopsis, houstonia, and verbena.
Habitat: Dry, open areas such as short-grass prairie hills, scrub oak groves, open woodland, washes, road edges.
Range: Resident in South America north to southern Texas and peninsular Florida. Stray or temporary resident from central California northeast through the Great Lakes area and all the eastern 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 121 - 144 of 1447 verified sightings
Observation date: Aug 09, 2021
Submitted by: jamesvonloh
Region: Doña Ana County, New Mexico, United States
Verified by: stevecary
Verified date: Jan 26, 2022
Observation date: Aug 16, 2021
Submitted by: jamesvonloh
Region: Doña Ana County, New Mexico, United States
Verified by: stevecary
Verified date: Jan 26, 2022
Observation date: Aug 07, 2021
Submitted by: jamesvonloh
Region: Doña Ana County, New Mexico, United States
Verified by: stevecary
Verified date: Jan 26, 2022
Observation date: Dec 29, 2021
Submitted by: Roy Cohutta
Region: Dougherty County, Georgia, United States
Verified by: Mikelchap
Verified date: Jan 14, 2022
Observation date: Jan 07, 2022
Submitted by: Marta Reece
Region: Doña Ana County, New Mexico, United States
Verified by: stevecary
Verified date: Jan 10, 2022
Observation date: Dec 10, 2021
Submitted by: PPorterfield
Region: Comal County, Texas, United States
Verified by: stomlins701
Verified date: Jan 07, 2022
Observation date: Dec 14, 2021
Submitted by: Roy Cohutta
Region: Dougherty County, Georgia, United States
Verified by: Mikelchap
Verified date: Dec 19, 2021
Observation date: Nov 27, 2021
Submitted by: J Tinsman
Region: Maricopa County, Arizona, United States
Verified by: John Saba
Verified date: Dec 05, 2021
Observation date: Nov 28, 2021
Submitted by: nealinaz
Region: Cochise County, Arizona, United States
Verified by: John Saba
Verified date: Nov 28, 2021
Observation date: Nov 07, 2021
Submitted by: wolfoest
Region: Texas, Lubbock County, United States
Verified by: stomlins701
Verified date: Nov 22, 2021
Observation date: Aug 10, 2021
Submitted by: Paul Prappas
Region: Pima County, Arizona, United States
Verified by: John Saba
Verified date: Nov 21, 2021
Observation date: Nov 12, 2021
Submitted by: ObserverofGod'sart
Region: Bexar County, Texas, United States
Verified by: stomlins701
Verified date: Nov 18, 2021
Observation date: Nov 01, 2021
Submitted by: Janet Ruth
Region: Sierra County, New Mexico, United States
Verified by: stevecary
Verified date: Nov 14, 2021
Observation date: Sep 08, 2021
Submitted by: robtluke@aol.com
Region: Bernalillo County, New Mexico, United States
Verified by: stevecary
Verified date: Nov 13, 2021
Observation date: Oct 16, 2021
Submitted by: robtluke@aol.com
Region: Lincoln County, New Mexico, United States
Verified by: stevecary
Verified date: Nov 13, 2021
Observation date: Oct 28, 2021
Submitted by: Rmclaughlin
Region: Pima County, Arizona, United States
Verified by: John Saba
Verified date: Nov 11, 2021
Observation date: Oct 25, 2021
Submitted by: 1tom2go
Region: Doña Ana County, New Mexico, United States
Verified by: stevecary
Verified date: Oct 30, 2021
Observation date: Oct 21, 2021
Submitted by: Rmclaughlin
Region: Pima County, Arizona, United States
Verified by: John Saba
Verified date: Oct 27, 2021
Observation date: Aug 30, 2021
Submitted by: 1tom2go
Region: Doña Ana County, New Mexico, United States
Verified by: stevecary
Verified date: Oct 24, 2021
Observation date: Oct 16, 2021
Submitted by: beebee59
Region: Pima County, Arizona, United States
Verified by: curtis.lehman
Verified date: Oct 19, 2021
Observation date: Sep 19, 2021
Submitted by: bonfrey
Region: Socorro County, New Mexico, United States
Verified by: stevecary
Verified date: Oct 01, 2021
Observation date: Sep 13, 2021
Submitted by: Cactuswren1976
Region: New Mexico, United States
Verified by: stevecary
Verified date: Sep 20, 2021
Observation date: Sep 10, 2021
Submitted by: JudyLY
Region: Doña Ana County, New Mexico, United States
Verified by: stevecary
Verified date: Sep 13, 2021
Observation date: Sep 10, 2021
Submitted by: JudyLY
Region: Doña Ana County, New Mexico, United States
Verified by: stevecary
Verified date: Sep 13, 2021
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