Mohave Sootywing
Hesperopsis libya (Scudder, 1878)
Family: Hesperiidae
Subfamily: Pyrginae
Identification: Fringes are white and not checkered. Upperside is dark brown with 2 rows of small white spots on the forewing; hindwing may have some white spots. Underside of hindwing is light to dark brown with a pale gray overlay and few to many white spots.
Wing Span: 7/8 - 1 1/4 inches (2.2 - 3.2 cm).
Life History: To find receptive females, males patrol around the host plants in the morning. Females lay eggs singly on leaves of the host plants. Caterpillars feed on leaves and live in nests of leaves tied together with silk.
Flight: One brood in North Dakota and Montana from July-August; two broods in Colorado from June-August; several broods in southern California from March-October.
Caterpillar Hosts: Shadscale (Atriplex canescens) in the goosefoot family (Chenopodiaceae).
Adult Food: Flower nectar.
Habitat: Desert washes and alkali flats with shadscale.
Range: Eastern Oregon east to Montana; south to southern California, Arizona, Baja California, and northwestern mainland Mexico.
Conservation: Not usually required.
NCGR: G5 - Demonstrably secure globally, though it may 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 191 verified sightings
Observation date: Apr 19, 2024
Submitted by: dvollmar
Region: San Bernardino County, California, United States
Verified by: Ken Davenport
Verified date: Sep 15, 2024
Observation date: Apr 29, 2024
Submitted by: Robert Gorman
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: May 04, 2024
Observation date: Apr 28, 2024
Submitted by: Robert Gorman
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: May 03, 2024
Observation date: Jun 02, 2023
Submitted by: J Tinsman
Region: Clark County, Nevada, United States
Verified by: Ken Davenport
Verified date: Jun 08, 2023
Observation date: Apr 30, 2023
Submitted by: PONYRCR
Region: San Bernardino County, California, United States
Verified by: Ken Davenport
Verified date: May 01, 2023
Observation date: May 07, 2022
Submitted by: guy_incognito
Region: San Bernardino County, California, United States
Verified by: Ken Davenport
Verified date: May 07, 2022
Observation date: Nov 01, 2020
Submitted by: Robert Gorman
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: Nov 26, 2020
Observation date: Aug 04, 2020
Submitted by: eppierce
Region: Nevada, United States
Verified by: Ken Davenport
Verified date: Aug 06, 2020
Observation date: Oct 12, 2019
Submitted by: Robert Gorman
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: Oct 25, 2019
Observation date: Oct 14, 2018
Submitted by: Robert Gorman
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: Jan 15, 2019
Observation date: May 08, 2017
Submitted by: opiliones
Region: Clark County, Nevada, United States
Verified by: Ken Davenport
Verified date: Jun 10, 2017
Observation date: Apr 09, 2017
Submitted by: diwalks2@gmail.com
Region: San Bernardino County, California, United States
Verified by: Ken Davenport
Verified date: Apr 11, 2017
Observation date: Sep 29, 2016
Submitted by: Bdog
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: Oct 01, 2016
Observation date: Apr 21, 2013
Submitted by: GCSnelling
Region: San Bernardino County, California, United States
Verified by: Ken Davenport
Verified date: Jun 18, 2016
Observation date: Apr 23, 2016
Submitted by: Doug Taron
Region: Clark County, Nevada, United States
Verified by: Doug Taron
Verified date: Apr 29, 2016
Observation date: Sep 29, 2013
Submitted by: Robert Gorman
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: Mar 02, 2015
Observation date: Nov 09, 2014
Submitted by: Robert Gorman
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: Dec 09, 2014
Observation date: May 19, 2012
Submitted by: diwalks2@gmail.com
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: Jan 28, 2014
Observation date: Sep 29, 2013
Submitted by: Robert Gorman
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: Dec 03, 2013
Observation date: Jul 01, 2006
Submitted by: tjantscher
Region: Carbon County, Wyoming, United States
Verified by: J_Martineau
Verified date: Jan 24, 2013
Observation date: May 04, 1977
Submitted by: legacy.reporter (George T. Austin)
Region: Clark County, Nevada, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 01, 2012
Observation date: Sep 01, 2063
Submitted by: legacy.reporter (Kilian Roever)
Region: Clark County, Nevada, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 01, 2012
Observation date: Jun 18, 2068
Submitted by: legacy.reporter (unknown)
Region: Clark County, Nevada, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 01, 2012
Observation date: Jun 27, 2061
Submitted by: legacy.reporter (George T. Austin)
Region: Clark County, Nevada, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 01, 2012
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