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 193 - 216 of 377 verified sightings
Observation date: Jun 12, 1990
Submitted by: Ken Davenport (Ken Davenport)
Region: Tulare County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jun 17, 2009
Observation date: Jul 19, 1993
Submitted by: Ken Davenport (Ken Davenport)
Region: Tulare County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jun 17, 2009
Observation date: Jun 15, 1968
Submitted by: legacy.reporter (Keith Hughes)
Region: Fresno County, California, United States
Verified by: legacy.verifier (Ray Stanford)
Verified date: Jun 17, 2009
Observation date: May 09, 1997
Submitted by: Ken Davenport (Ken Davenport)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jun 17, 2009
Observation date: Jun 21, 2006
Submitted by: Ken Davenport (Ken Davenport)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jun 17, 2009
Observation date: Jun 10, 1985
Submitted by: Ken Davenport (Ken Davenport)
Region: Kern County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jun 17, 2009
Observation date: Jun 27, 1990
Submitted by: Ken Davenport (Ken Davenport)
Region: Tulare County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jun 17, 2009
Observation date: Jun 23, 2003
Submitted by: Ken Davenport (Ken Davenport)
Region: Kern County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jun 17, 2009
Observation date: Jul 01, 1996
Submitted by: Ken Davenport (Ken Davenport)
Region: Madera County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jun 17, 2009
Observation date: Jun 21, 2006
Submitted by: Ken Davenport (Ken Davenport)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jun 17, 2009
Observation date: Jun 06, 1986
Submitted by: Ken Davenport (Ken Davenport)
Region: Kern County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jun 17, 2009
Observation date: Jul 04, 2004
Submitted by: Ken Davenport (Ken Davenport)
Region: Tulare County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jun 17, 2009
Observation date: Jun 11, 1981
Submitted by: Ken Davenport (Ken Davenport)
Region: Tulare County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jun 17, 2009
Observation date: Apr 14, 2000
Submitted by: legacy.reporter (Ray E. Stanford)
Region: Maricopa County, Arizona, United States
Verified by: legacy.verifier (The Lepidopterists' Society Season Summary)
Verified date: Jan 28, 2009
Observation date: unknown
Submitted by: legacy.reporter
Region: Skamania County, Washington, United States
Verified by: legacy.verifier (An Atlas of Washington Butterflies by John Hinchliff)
Verified date: Aug 14, 2008
Observation date: Jun 10, 2005
Submitted by: stevekohler (Steve Kohler)
Region: Ravalli County, Montana, United States
Verified by: stevekohler (Steve Kohler)
Verified date: Jan 23, 2008
Observation date: Jun 27, 2005
Submitted by: stevekohler (Steve Kohler)
Region: Mineral County, Montana, United States
Verified by: stevekohler (Steve Kohler)
Verified date: Jan 23, 2008
Observation date: Jun 16, 2005
Submitted by: stevekohler (Steve Kohler)
Region: Powell County, Montana, United States
Verified by: stevekohler (Steve Kohler)
Verified date: Jan 23, 2008
Observation date: May 26, 1988
Submitted by: stevekohler (Steve Kohler)
Region: Lincoln County, Montana, United States
Verified by: stevekohler (Steve Kohler)
Verified date: Jan 23, 2008
Observation date: Jun 16, 2005
Submitted by: stevekohler (Steve Kohler)
Region: Granite County, Montana, United States
Verified by: stevekohler (Steve Kohler)
Verified date: Jan 23, 2008
Observation date: Jun 09, 2006
Submitted by: legacy.reporter (Nick Lethaby)
Region: Santa Barbara County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 07, 2008
Observation date: unknown
Submitted by: legacy.reporter
Region: Baker County, Oregon, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Coconino County, Arizona, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: San Luis Obispo County, California, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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