Pacific Fritillary
Boloria epithore (W.H. Edwards, 1864)
Family: Nymphalidae
Subfamily: Heliconiinae
Identification: Tip of forewing rounded. Upperside bright orange; black markings large on basal half of wing, small on outer half. Underside orange with purple-brown markings; hindwing with postmedian row of dark circles.
Wing Span: 1 3/8 - 1 3/4 inches (3.5 - 4.5 cm).
Life History: Males patrol for females all day in woods and meadows. Overwintering is by fourth-stage caterpillars.
Flight: One flight from May-August.
Caterpillar Hosts: Violets including Viola ocellata, V. sempervirens, and V. glabella.
Adult Food: Flower nectar.
Habitat: Openings in moist forests, wet meadows, streamsides.
Range: Central British Columbia east and south to Alberta and Montana, south along Pacific Coast to central California.
Conservation: Populations in California's Santa Cruz Mountains are limited and may be in jeopardy.
NCGR: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
Management Needs: Inventory and monitor limited populations and propose any necessary conservation actions.
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Verified Sightings
Displaying 1 - 24 of 492 verified sightings
Observation date: Jun 23, 2025
Submitted by: sandyleapt
Region: Benton County, Oregon, United States
Verified by: Ken Davenport
Verified date: Sep 05, 2025
Observation date: Jul 03, 2025
Submitted by: sandyleapt
Region: Benton County, Oregon, United States
Verified by: Ken Davenport
Verified date: Sep 05, 2025
Observation date: Jul 16, 2025
Submitted by: SCA PNW
Region: Chelan County, Washington, United States
Verified by: davidwdroppers
Verified date: Aug 24, 2025
Observation date: Jul 13, 2025
Submitted by: Reneerob17
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Aug 04, 2025
Observation date: Jul 22, 2025
Submitted by: regina rochefort
Region: Skagit County, Washington, United States
Verified by: davidwdroppers
Verified date: Jul 30, 2025
Observation date: Jul 16, 2025
Submitted by: pgericks
Region: Snohomish County, Washington, United States
Verified by: davidwdroppers
Verified date: Jul 21, 2025
Observation date: Jun 26, 2025
Submitted by: ncrosbyrd
Region: Linn County, Oregon, United States
Verified by: Ken Davenport
Verified date: Jul 08, 2025
Observation date: Jul 02, 2025
Submitted by: Steve Koehler
Region: Clallam County, Washington, United States
Verified by: davidwdroppers
Verified date: Jul 06, 2025
Observation date: Jul 08, 2024
Submitted by: regina rochefort
Region: Skagit County, Washington, United States
Verified by: davidwdroppers
Verified date: Jun 22, 2025
Observation date: May 31, 2025
Submitted by: Sophia Reyes
Region: Santa Cruz County, California, United States
Verified by: Ken Davenport
Verified date: Jun 12, 2025
Observation date: May 14, 2025
Submitted by: weflybye
Region: Mason County, Washington, United States
Verified by: davidwdroppers
Verified date: May 14, 2025
Observation date: Jul 17, 2024
Submitted by: Nancy Gleason
Region: Jefferson County, Washington, United States
Verified by: davidwdroppers
Verified date: Mar 18, 2025
Observation date: Jun 03, 1988
Submitted by: papilio1
Region: Plumas County, California, United States
Verified by: Ken Davenport
Verified date: Nov 12, 2024
Observation date: Jul 31, 2024
Submitted by: sandyleapt
Region: Benton County, Oregon, United States
Verified by: Ken Davenport
Verified date: Aug 27, 2024
Observation date: Jul 06, 2024
Submitted by: rkw9000
Region: Benton County, Oregon, United States
Verified by: Ken Davenport
Verified date: Aug 25, 2024
Observation date: Jun 11, 2022
Submitted by: Alison Davies
Region: Fresno County, California, United States
Verified by: Ken Davenport
Verified date: Aug 09, 2024
Observation date: Jul 21, 2024
Submitted by: jrmbutterfly
Region: British Columbia, Canada
Verified by: jwileyrains
Verified date: Jul 29, 2024
Observation date: Jul 17, 2024
Submitted by: pgericks
Region: Snohomish County, Washington, United States
Verified by: davidwdroppers
Verified date: Jul 23, 2024
Observation date: Jun 30, 2024
Submitted by: mellenhead14
Region: Clatsop County, Oregon, United States
Verified by: Ken Davenport
Verified date: Jul 08, 2024
Observation date: Jul 02, 2024
Submitted by: sandyleapt
Region: Benton County, Oregon, United States
Verified by: Ken Davenport
Verified date: Jul 06, 2024
Observation date: Jun 25, 2024
Submitted by: TomPeterson
Region: Tulare County, California, United States
Verified by: Ken Davenport
Verified date: Jul 01, 2024
Observation date: Jun 25, 2024
Submitted by: weflybye
Region: Mason County, Washington, United States
Verified by: davidwdroppers
Verified date: Jun 25, 2024
Observation date: Jun 09, 2024
Submitted by: weflybye
Region: Mason County, Washington, United States
Verified by: davidwdroppers
Verified date: Jun 14, 2024
Observation date: May 14, 2024
Submitted by: weflybye
Region: Mason County, Washington, United States
Verified by: davidwdroppers
Verified date: May 14, 2024
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