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 1 - 24 of 331 verified sightings
Observation date: May 24, 2019
Submitted by: Mark Salvato
Region: Apache County, Arizona, United States
Verified by: John Saba
Verified date: Oct 22, 2021
Observation date: Jul 17, 2021
Submitted by: rebeccagracey
Region: Torrance County, New Mexico, United States
Verified by: stevecary
Verified date: Jul 24, 2021
Observation date: Jun 10, 2021
Submitted by: twofried
Region: Taos County, New Mexico, United States
Verified by: stevecary
Verified date: Jun 29, 2021
Observation date: Jun 10, 2021
Submitted by: Harry Forbes
Region: Taos County, New Mexico, United States
Verified by: stevecary
Verified date: Jun 29, 2021
Observation date: May 28, 2021
Submitted by: jrmbutterfly
Region: British Columbia, Canada
Verified by: davidwdroppers
Verified date: Jun 25, 2021
Observation date: Jun 12, 2021
Submitted by: robertpb
Region: Fresno County, California, United States
Verified by: Ken Davenport
Verified date: Jun 14, 2021
Observation date: Jun 12, 2021
Submitted by: guy_incognito
Region: San Bernardino County, California, United States
Verified by: Ken Davenport
Verified date: Jun 13, 2021
Observation date: May 03, 2020
Submitted by: guy_incognito
Region: Cochise County, Arizona, United States
Verified by: John Saba
Verified date: Jun 09, 2021
Observation date: Feb 28, 2021
Submitted by: stevecary
Region: Cochise County, Arizona, United States
Verified by: John Saba
Verified date: Jun 09, 2021
Observation date: May 02, 2021
Submitted by: topper72
Region: Los Alamos County, New Mexico, United States
Verified by: stevecary
Verified date: May 08, 2021
Observation date: Jun 22, 2020
Submitted by: stevecary
Region: Archuleta County, Colorado, United States
Verified by: azukoff
Verified date: Nov 23, 2020
Observation date: Jul 08, 2020
Submitted by: stevecary
Region: Cibola County, New Mexico, United States
Verified by: stevecary
Verified date: Nov 15, 2020
Observation date: Aug 22, 2020
Submitted by: Shearwater13
Region: Cochise County, Arizona, United States
Verified by: CA Ivy
Verified date: Sep 05, 2020
Observation date: May 29, 2020
Submitted by: A_baldini
Region: Larimer County, Colorado, United States
Verified by: mikefisher
Verified date: Jun 14, 2020
Observation date: Jun 01, 2020
Submitted by: Cactuswren1976
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Jun 01, 2020
Observation date: May 04, 2020
Submitted by: stevecary
Region: Cibola County, New Mexico, United States
Verified by: stevecary
Verified date: May 05, 2020
Observation date: May 15, 2019
Submitted by: stevecary
Region: Cochise County, Arizona, United States
Verified by: John Saba
Verified date: Feb 02, 2020
Observation date: Jun 16, 2019
Submitted by: A_baldini
Region: Larimer County, Colorado, United States
Verified by: mikefisher
Verified date: Sep 21, 2019
Observation date: Jul 29, 2019
Submitted by: Doug Taron
Region: Cochise County, Arizona, United States
Verified by: Doug Taron
Verified date: Sep 05, 2019
Observation date: Jul 01, 2019
Submitted by: Cactuswren1976
Region: New Mexico, United States
Verified by: stevecary
Verified date: Jul 31, 2019
Observation date: Jul 14, 2019
Submitted by: Scott Burgess
Region: Humboldt County, California, United States
Verified by: Ken Davenport
Verified date: Jul 18, 2019
Observation date: Jun 23, 2019
Submitted by: MAKI
Region: Kern County, California, United States
Verified by: CA Ivy
Verified date: Jun 28, 2019
Observation date: Jun 02, 2018
Submitted by: Paul Prappas
Region: British Columbia, Canada
Verified by: Norbert Kondla
Verified date: Nov 24, 2018
Observation date: Jun 06, 2018
Submitted by: 4oclockwatch
Region: Jackson County, Oregon, United States
Verified by: Ken Davenport
Verified date: Jun 07, 2018
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