Pacuvius Duskywing
Erynnis pacuvius (Lintner, 1878)
Family: Hesperiidae
Subfamily: Pyrginae
Identification: Upperside brown to black; forewing with uneven dark bands and small submarginal spots. Hindwing fringes are white with brown scales at their bases in subspecies pacuvius (Utah, Colorado, Arizona, New Mexico) and brown in other subspecies. Male has a costal fold containing yellow scent scales; female has a patch of scent scales on the 7th abdominal segment.
Wing Span: 1 1/4 - 1 3/8 inches (3.2 - 3.5 cm).
Life History: To wait for females, males perch on hilltops all day, and sometimes patrol when there is a high density of males.
Flight: Two broods in southern California, Arizona, and New Mexico; one brood in the north.
Caterpillar Hosts: Various wild lilacs including deer brier (Ceanothus fendleri), mountain whitethorn (Ceanothus cordulatus), hairy ceanothus (Ceanothus oliganthus), and others.
Adult Food: Nectar from flowers including Ceanothus.
Habitat: Open coniferous forest, chaparral, cutover land.
Range: British Columbia south through the mountains of western North America to southern California, Arizona, New Mexico, Baja California Norte, and south to Veracruz, Mexico.
Conservation: Not usually required.
NCGR: G4 - Apparently secure globally, though it might be quite rare in parts of its range, especially at the periphery.
Management Needs: None reported.
Comments: NULL
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Verified Sightings
Displaying 121 - 144 of 367 verified sightings
Observation date: unknown
Submitted by: paulopler (Paul Opler)
Region: United States
Verified by: BAMONA
Verified date: Sep 06, 2010
Observation date: Jun 24, 1990
Submitted by: legacy.reporter (Ken Osborne, C. Sekerman)
Region: Santa Cruz County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Aug 02, 2010
Observation date: May 02, 1981
Submitted by: legacy.reporter (R. Busby, R. Langston & D. Parkinson)
Region: Lake County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Mar 09, 2010
Observation date: Jun 24, 1989
Submitted by: legacy.reporter (Laurence Crabtree)
Region: Plumas County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 25, 2010
Observation date: May 29, 1976
Submitted by: legacy.reporter (Richard Breedlove)
Region: Santa Cruz County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 07, 2010
Observation date: Jun 19, 1976
Submitted by: legacy.reporter (Robert L. Langston)
Region: Los Angeles County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 07, 2010
Observation date: Apr 13, 1968
Submitted by: legacy.reporter (D. Murphy)
Region: Mendocino County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 06, 2010
Observation date: Jun 30, 1968
Submitted by: legacy.reporter (James Scott)
Region: Sierra County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 06, 2010
Observation date: Jun 29, 1961
Submitted by: legacy.reporter (D. Dirks & O. Shields)
Region: El Dorado County, California, United States
Verified by: legacy.verifier (John Burns)
Verified date: Jan 06, 2010
Observation date: Jun 17, 1960
Submitted by: legacy.reporter (John & Tom Emmel)
Region: Placer County, California, United States
Verified by: legacy.verifier (John F. Emmel)
Verified date: Jan 05, 2010
Observation date: Aug 05, 1960
Submitted by: legacy.reporter (John & Tom Emmel)
Region: Placer County, California, United States
Verified by: legacy.verifier (John F. Emmel)
Verified date: Jan 05, 2010
Observation date: Apr 04, 1908
Submitted by: legacy.reporter (J. A. Comstock)
Region: Marin County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 05, 2010
Observation date: Jun 01, 1924
Submitted by: legacy.reporter (J. A. Comstock)
Region: Riverside County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 05, 2010
Observation date: May 29, 2007
Submitted by: Ken Davenport (Ken Davenport)
Region: Madera County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 04, 2010
Observation date: unknown
Submitted by: legacy.reporter (unknown)
Region: Mariposa County, California, United States
Verified by: legacy.verifier (William H. Howe)
Verified date: Dec 17, 2009
Observation date: unknown
Submitted by: legacy.reporter (unknown)
Region: Riverside County, California, United States
Verified by: legacy.verifier (William H. Howe)
Verified date: Dec 17, 2009
Observation date: unknown
Submitted by: legacy.reporter (C. Don MacNeill)
Region: Marin County, California, United States
Verified by: legacy.verifier (William H. Howe)
Verified date: Dec 17, 2009
Observation date: Jul 03, 1954
Submitted by: legacy.reporter (J. W. Tilden)
Region: Mariposa County, California, United States
Verified by: legacy.verifier (Garth & Tilden)
Verified date: Oct 19, 2009
Observation date: Jun 24, 1959
Submitted by: legacy.reporter (John S. Garth)
Region: Mariposa County, California, United States
Verified by: legacy.verifier (Garth & Tilden)
Verified date: Oct 19, 2009
Observation date: Jun 26, 1954
Submitted by: legacy.reporter (J. W. Tilden)
Region: Mariposa County, California, United States
Verified by: legacy.verifier (Garth & Tilden)
Verified date: Oct 19, 2009
Observation date: May 30, 1924
Submitted by: legacy.reporter (J. A. Comstock)
Region: Riverside County, California, United States
Verified by: legacy.verifier (Emmel & Emmel)
Verified date: Aug 10, 2009
Observation date: Jul 07, 2009
Submitted by: Ken Davenport (Ken Davenport)
Region: Alpine County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Aug 07, 2009
Observation date: Jul 13, 2009
Submitted by: Ken Davenport (Ken Davenport)
Region: Inyo County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Aug 07, 2009
Observation date: Jul 13, 1998
Submitted by: Ken Davenport (Ken Davenport)
Region: Ventura County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jun 26, 2009
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