Pale Swallowtail
Papilio eurymedon Lucas, 1852
Family: Papilionidae
Subfamily: Papilioninae
Identification: Upper surface of wings creamy white with black stripes. Front wing is narrow and pointed; tail of hindwing is long, slender and twisted.
Wing Span: 2 1/2 - 3 1/2 inches (6.4 - 9 cm).
Life History: Males perch and patrol for receptive females. Females lay eggs singly on host plant leaves. Caterpillars feed on leaves and rest on silken mats in shelters of curled leaves. Pupae hibernate.
Flight: One flight from April-July, many flights in southern California from March-August.
Caterpillar Hosts: Trees and shrubs in the Rosaceae, Rhamnaceae and Betulaceae families including cherry (Prunus emarginata), coffee-berry (Rhamnus californica), and ash (Fraxinus spp.).
Adult Food: Flower nectar including California buckeye, yerba santa, and wallflower.
Habitat: Foothills, open woodlands, chaparral, streamsides.
Range: British Columbia east to Montana, south to New Mexico. California and Baja California.
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 noted.
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Verified Sightings
Displaying 49 - 72 of 903 verified sightings
Observation date: Apr 23, 2023
Submitted by: camflies
Region: Ventura County, California, United States
Verified by: Ken Davenport
Verified date: May 07, 2023
Observation date: Apr 16, 2023
Submitted by: camflies
Region: Ventura County, California, United States
Verified by: Ken Davenport
Verified date: Apr 22, 2023
Observation date: Feb 19, 2023
Submitted by: mstanek
Region: Los Angeles County, California, United States
Verified by: Ken Davenport
Verified date: Feb 20, 2023
Observation date: Jun 14, 2022
Submitted by: hasfitz5
Region: Contra Costa County, California, United States
Verified by: Ken Davenport
Verified date: Feb 15, 2023
Observation date: Jul 10, 2016
Submitted by: kbfunk
Region: British Columbia, Canada
Verified by: curtis.lehman
Verified date: Feb 10, 2023
Observation date: Jun 07, 2018
Submitted by: Sir_Spenders
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Sep 23, 2022
Observation date: May 27, 2018
Submitted by: J Rachwalski
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Sep 23, 2022
Observation date: May 30, 2019
Submitted by: Scott Denkers
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Sep 23, 2022
Observation date: Jul 25, 2022
Submitted by: sandyleapt
Region: Benton County, Oregon, United States
Verified by: Ken Davenport
Verified date: Sep 10, 2022
Observation date: Jun 20, 2008
Submitted by: RLHardesty
Region: Flathead County, Montana, United States
Verified by: J_Martineau
Verified date: Aug 15, 2022
Observation date: Jun 19, 2022
Submitted by: Seth Mueller
Region: San Bernardino County, California, United States
Verified by: Ken Davenport
Verified date: Aug 14, 2022
Observation date: Jul 29, 2022
Submitted by: madamirie
Region: Siskiyou County, California, United States
Verified by: Ken Davenport
Verified date: Aug 14, 2022
Observation date: Aug 11, 2022
Submitted by: dennygranstrand
Region: Yakima County, Washington, United States
Verified by: Ken Davenport
Verified date: Aug 12, 2022
Observation date: Jul 25, 2022
Submitted by: MAKI
Region: Siskiyou County, California, United States
Verified by: Ken Davenport
Verified date: Aug 01, 2022
Observation date: Jul 15, 2022
Submitted by: joeschelling
Region: Colfax County, New Mexico, United States
Verified by: stevecary
Verified date: Jul 22, 2022
Observation date: Jul 09, 2022
Submitted by: bristolmpu
Region: Harney County, Oregon, United States
Verified by: Ken Davenport
Verified date: Jul 17, 2022
Observation date: Jul 06, 2022
Submitted by: Steve Koehler
Region: Clallam County, Washington, United States
Verified by: davidwdroppers
Verified date: Jul 17, 2022
Observation date: Jul 10, 2022
Submitted by: topper72
Region: Colfax County, New Mexico, United States
Verified by: stevecary
Verified date: Jul 15, 2022
Observation date: Jul 10, 2022
Submitted by: tjay13
Region: Rio Arriba County, New Mexico, United States
Verified by: stevecary
Verified date: Jul 14, 2022
Observation date: Jun 28, 2022
Submitted by: pnesterenko
Region: El Paso County, Colorado, United States
Verified by: mikefisher
Verified date: Jul 13, 2022
Observation date: Jun 26, 2022
Submitted by: NikkiM
Region: Carbon County, Montana, United States
Verified by: J_Martineau
Verified date: Jul 09, 2022
Observation date: Jul 05, 2022
Submitted by: jrmbutterfly
Region: British Columbia, Canada
Verified by: davidwdroppers
Verified date: Jul 07, 2022
Observation date: Jun 25, 2022
Submitted by: ezeemonee
Region: Kern County, California, United States
Verified by: Ken Davenport
Verified date: Jul 05, 2022
Observation date: Jun 21, 2022
Submitted by: MAKI
Region: Lassen County, California, United States
Verified by: Ken Davenport
Verified date: Jul 04, 2022
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