Our summer fundraiser has arrived, and we need your help!
We depend on donations to keep Butterflies and Moths of North America online and free. If everyone who uses this resource makes a donation, we could cover our ongoing costs, develop new features, upgrade the system, and maybe even remove those pesky ads. Please make a one-time or recurring donation to show your support for this valuable source of information. Thank you!
We depend on donations to keep Butterflies and Moths of North America online and free. If everyone who uses this resource makes a donation, we could cover our ongoing costs, develop new features, upgrade the system, and maybe even remove those pesky ads. Please make a one-time or recurring donation to show your support for this valuable source of information. Thank you!
Propertius Duskywing
Erynnis propertius (Scudder & Burgess, 1870)
Family: Hesperiidae
Subfamily: Pyrginae
Identification: Upperside brown; forewings with gray overscaling and distinct dark markings. Clear spots are small in the male, large in the female. Underside of hindwing has well-defined spots below the apex. Male has a costal fold containing yellow scent scales; female has a patch of scent scales on the 7th abdominal segment.
Wing Span: 1 3/8 - 1 3/4 inches (3.5 - 4.5 cm).
Life History: Males perch on sunny hilltops to find females. Fully-grown caterpillars hibernate.
Flight: One brood from March-July.
Caterpillar Hosts: Coast live oak (Quercus agrifolia), Garry oak (Q. garryana), and perhaps others.
Adult Food: Flower nectar.
Habitat: Open oak woodlands, forest openings and edges, meadows and fields near oaks. Does not occur in deserts or hot central valleys.
Range: Southern British Columbia south along the Pacific Slope to Baja California Norte.
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
National Moth Week was July 23-31, 2022!
Moths are amazing creatures. Take photographs and share your moth sightings with us to document the moths where you live. Learn more.
Verified Sightings
Displaying 1 - 24 of 375 verified sightings

Observation date: Jul 28, 2022
Submitted by: MAKI
Region: Siskiyou County, California, United States
Verified by: Ken Davenport
Verified date: Jul 31, 2022

Observation date: Jun 01, 2022
Submitted by: BillBradford
Region: Klickitat County, Washington, United States
Verified by: davidwdroppers
Verified date: Jun 06, 2022

Observation date: Jun 02, 2022
Submitted by: hiker96
Region: Thurston County, Washington, United States
Verified by: davidwdroppers
Verified date: Jun 03, 2022

Observation date: May 14, 2022
Submitted by: robertpb
Region: Mariposa County, California, United States
Verified by: Ken Davenport
Verified date: May 17, 2022

Observation date: May 06, 2022
Submitted by: butterflies4us
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: May 07, 2022

Observation date: May 01, 2022
Submitted by: weflybye
Region: Klickitat County, Washington, United States
Verified by: davidwdroppers
Verified date: May 04, 2022

Observation date: Apr 04, 2022
Submitted by: Deantroi
Region: Sonoma County, California, United States
Verified by: Ken Davenport
Verified date: Apr 05, 2022

Observation date: Apr 03, 2022
Submitted by: RoxannaTessman
Region: Jackson County, Oregon, United States
Verified by: Ken Davenport
Verified date: Apr 03, 2022

Observation date: Mar 26, 2022
Submitted by: yhelfman
Region: Santa Clara County, California, United States
Verified by: Ken Davenport
Verified date: Mar 30, 2022

Observation date: Mar 22, 2022
Submitted by: Dnewhall
Region: Jackson County, Oregon, United States
Verified by: Ken Davenport
Verified date: Mar 24, 2022

Observation date: Mar 07, 2022
Submitted by: glennfine
Region: Siskiyou County, California, United States
Verified by: Ken Davenport
Verified date: Mar 09, 2022

Observation date: Jul 13, 2016
Submitted by: ncrosbyrd
Region: Tulare County, California, United States
Verified by: Ken Davenport
Verified date: Feb 06, 2022

Observation date: Jun 07, 2015
Submitted by: dlister
Region: Mono County, California, United States
Verified by: Ken Davenport
Verified date: Jan 24, 2022

Observation date: Jun 02, 2015
Submitted by: dlister
Region: Mono County, California, United States
Verified by: Ken Davenport
Verified date: Jan 24, 2022

Observation date: Mar 25, 2016
Submitted by: griffin1680
Region: Los Angeles County, California, United States
Verified by: Ken Davenport
Verified date: Nov 08, 2021

Observation date: Jun 16, 2018
Submitted by: Mark Salvato
Region: Josephine County, Oregon, United States
Verified by: Ken Davenport
Verified date: Oct 19, 2021

Observation date: Jun 24, 2021
Submitted by: sarabseth
Region: San Mateo County, California, United States
Verified by: Ken Davenport
Verified date: Jun 28, 2021

Observation date: Jun 26, 2021
Submitted by: Shearwater13
Region: San Bernardino County, California, United States
Verified by: Ken Davenport
Verified date: Jun 27, 2021

Observation date: Jul 26, 2020
Submitted by: guy_incognito
Region: San Bernardino County, California, United States
Verified by: Ken Davenport
Verified date: Jun 26, 2021

Observation date: Jun 18, 2021
Submitted by: gp
Region: Lane County, Oregon, United States
Verified by: Ken Davenport
Verified date: Jun 19, 2021

Observation date: May 30, 2021
Submitted by: guy_incognito
Region: San Bernardino County, California, United States
Verified by: Ken Davenport
Verified date: May 31, 2021

Observation date: May 23, 2021
Submitted by: ezeemonee
Region: Kern County, California, United States
Verified by: Ken Davenport
Verified date: May 31, 2021

Observation date: May 24, 2021
Submitted by: ezeemonee
Region: Kern County, California, United States
Verified by: Ken Davenport
Verified date: May 30, 2021

Observation date: May 23, 2021
Submitted by: glennfine
Region: Siskiyou County, California, United States
Verified by: Ken Davenport
Verified date: May 26, 2021
- 1 of 16
- next ›