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
Verified Sightings
Displaying 1 - 24 of 315 verified sightings
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
Observation date: Jun 03, 2018
Submitted by: Robert Gorman
Region: San Bernardino County, California, United States
Verified by: Ken Davenport
Verified date: Jun 05, 2018
Observation date: May 15, 2018
Submitted by: Robert Gorman
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: May 16, 2018
Observation date: Apr 02, 2018
Submitted by: Cactuswren1976
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 16, 2018
Observation date: Apr 04, 2018
Submitted by: Robert Gorman
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: Apr 05, 2018
Observation date: Jul 02, 2017
Submitted by: Laur52
Region: British Columbia, Canada
Verified by: Norbert Kondla
Verified date: Sep 22, 2017
Observation date: Apr 10, 2016
Submitted by: Paul Prappas
Region: Cochise County, Arizona, United States
Verified by: John Saba
Verified date: Sep 20, 2017
Observation date: Jul 02, 2017
Submitted by: Laur52
Region: British Columbia, Canada
Verified by: CA Ivy
Verified date: Sep 20, 2017
Observation date: Jun 15, 2017
Submitted by: Melanie Weiss
Region: Chelan County, Washington, United States
Verified by: davidwdroppers
Verified date: Jun 23, 2017
Observation date: Mar 18, 2017
Submitted by: rob77897@gmail.com
Region: Cochise County, Arizona, United States
Verified by: CA Ivy
Verified date: Jun 17, 2017
Observation date: Aug 25, 2016
Submitted by: Bdog
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: Sep 05, 2016
Observation date: Jun 25, 2016
Submitted by: ncrosbyrd
Region: Placer County, California, United States
Verified by: Ken Davenport
Verified date: Jul 30, 2016
Observation date: Jun 19, 2016
Submitted by: ncrosbyrd
Region: Nevada County, California, United States
Verified by: Ken Davenport
Verified date: Jul 30, 2016
Observation date: Jun 26, 2016
Submitted by: silversea_starsong
Region: Madera County, California, United States
Verified by: Ken Davenport
Verified date: Jun 30, 2016
Observation date: Jul 09, 2014
Submitted by: John Wilson
Region: Socorro County, New Mexico, United States
Verified by: CA Ivy
Verified date: Feb 04, 2016
Observation date: Apr 16, 2015
Submitted by: Josiah Gilbert
Region: San Luis Obispo County, California, United States
Verified by: Ken Davenport
Verified date: Dec 11, 2015
Observation date: Jun 27, 2015
Submitted by: diwalks2@gmail.com
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: Jun 29, 2015
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