Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

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 322 verified sightings
Observation date: May 02, 2021
Submitted by: topper72
Region: Los Alamos County, New Mexico, United States
Verified by: stevecary
Verified date: May 08, 2021
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Observation date: Jun 22, 2020
Submitted by: stevecary
Region: Archuleta County, Colorado, United States
Verified by: azukoff
Verified date: Nov 23, 2020
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Observation date: Jul 08, 2020
Submitted by: stevecary
Region: Cibola County, New Mexico, United States
Verified by: stevecary
Verified date: Nov 15, 2020
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Observation date: Aug 22, 2020
Submitted by: Shearwater13
Region: Cochise County, Arizona, United States
Verified by: CA Ivy
Verified date: Sep 05, 2020
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Observation date: May 29, 2020
Submitted by: A_baldini
Region: Larimer County, Colorado, United States
Verified by: mikefisher
Verified date: Jun 14, 2020
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Observation date: Jun 01, 2020
Submitted by: Cactuswren1976
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Jun 01, 2020
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Observation date: May 04, 2020
Submitted by: stevecary
Region: Cibola County, New Mexico, United States
Verified by: stevecary
Verified date: May 05, 2020
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Observation date: May 15, 2019
Submitted by: stevecary
Region: Cochise County, Arizona, United States
Verified by: John Saba
Verified date: Feb 02, 2020
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Observation date: Jun 16, 2019
Submitted by: A_baldini
Region: Larimer County, Colorado, United States
Verified by: mikefisher
Verified date: Sep 21, 2019
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Observation date: Jul 29, 2019
Submitted by: Doug Taron
Region: Cochise County, Arizona, United States
Verified by: Doug Taron
Verified date: Sep 05, 2019
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Observation date: Jul 01, 2019
Submitted by: Cactuswren1976
Region: New Mexico, United States
Verified by: stevecary
Verified date: Jul 31, 2019
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Observation date: Jul 14, 2019
Submitted by: Scott Burgess
Region: Humboldt County, California, United States
Verified by: Ken Davenport
Verified date: Jul 18, 2019
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Observation date: Jun 23, 2019
Submitted by: MAKI
Region: Kern County, California, United States
Verified by: CA Ivy
Verified date: Jun 28, 2019
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Observation date: Jun 02, 2018
Submitted by: Paul Prappas
Region: British Columbia, Canada
Verified by: Norbert Kondla
Verified date: Nov 24, 2018
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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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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
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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
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Observation date: Apr 02, 2018
Submitted by: Cactuswren1976
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 16, 2018
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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
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Observation date: Jul 02, 2017
Submitted by: Laur52
Region: British Columbia, Canada
Verified by: Norbert Kondla
Verified date: Sep 22, 2017
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Observation date: Apr 10, 2016
Submitted by: Paul Prappas
Region: Cochise County, Arizona, United States
Verified by: John Saba
Verified date: Sep 20, 2017
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Observation date: Jul 02, 2017
Submitted by: Laur52
Region: British Columbia, Canada
Verified by: CA Ivy
Verified date: Sep 20, 2017
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Observation date: Jun 15, 2017
Submitted by: Melanie Weiss
Region: Chelan County, Washington, United States
Verified by: davidwdroppers
Verified date: Jun 23, 2017
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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
  Details