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 920 verified sightings

Observation date: Jun 15, 2023
Submitted by: pdxgene711
Region: Linn County, Oregon, United States
Verified by: Ken Davenport
Verified date: Jun 20, 2023

Observation date: Jun 18, 2023
Submitted by: Seth Mueller
Region: San Bernardino County, California, United States
Verified by: Ken Davenport
Verified date: Jun 20, 2023

Observation date: Jun 18, 2023
Submitted by: RoxannaTessman
Region: Jackson County, Oregon, United States
Verified by: Ken Davenport
Verified date: Jun 18, 2023

Observation date: May 31, 2023
Submitted by: hasfitz5
Region: Contra Costa County, California, United States
Verified by: Ken Davenport
Verified date: Jun 12, 2023

Observation date: Jun 08, 2023
Submitted by: Lupine1
Region: Lewis County, Washington, United States
Verified by: davidwdroppers
Verified date: Jun 10, 2023

Observation date: Jun 03, 2023
Submitted by: camflies
Region: Ventura County, California, United States
Verified by: Ken Davenport
Verified date: Jun 03, 2023

Observation date: Jun 02, 2023
Submitted by: Sammy Catiis
Region: Clallam County, Washington, United States
Verified by: davidwdroppers
Verified date: Jun 03, 2023

Observation date: May 26, 2023
Submitted by: Varn
Region: Jefferson County, Washington, United States
Verified by: davidwdroppers
Verified date: May 28, 2023

Observation date: May 27, 2023
Submitted by: mstanek
Region: Los Angeles County, California, United States
Verified by: Ken Davenport
Verified date: May 28, 2023

Observation date: Apr 11, 2023
Submitted by: hasfitz5
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: May 26, 2023

Observation date: May 20, 2023
Submitted by: mstanek
Region: Los Angeles County, California, United States
Verified by: Ken Davenport
Verified date: May 22, 2023

Observation date: May 14, 2023
Submitted by: MAKI
Region: Ventura County, California, United States
Verified by: Ken Davenport
Verified date: May 21, 2023

Observation date: May 15, 2023
Submitted by: Dobber31
Region: Santa Clara County, California, United States
Verified by: Ken Davenport
Verified date: May 20, 2023

Observation date: May 19, 2023
Submitted by: hiker96
Region: Thurston County, Washington, United States
Verified by: davidwdroppers
Verified date: May 20, 2023

Observation date: May 13, 2023
Submitted by: Steve Koehler
Region: Clallam County, Washington, United States
Verified by: davidwdroppers
Verified date: May 15, 2023

Observation date: May 03, 2023
Submitted by: stevecary
Region: Riverside County, California, United States
Verified by: Ken Davenport
Verified date: May 11, 2023

Observation date: May 07, 2023
Submitted by: Seth Mueller
Region: San Bernardino County, California, United States
Verified by: Ken Davenport
Verified date: May 07, 2023

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
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