Sleepy Duskywing
Erynnis brizo (Boisduval & Leconte, [1837])
Family: Hesperiidae
Subfamily: Pyrginae
Identification: Antennal clubs are blunt. Upperside brown; forewing with 2 wide gray bands and no transparent spots. 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 3/4 inches (3.2 - 4.5 cm).
Life History: To seek females, males perch in clearings and on hilltops throughout the day. Patrolling around the host plants occurs when there is a high density of males. Females deposit single eggs on young leaves or leaf buds of the host plants. Caterpillars feed on leaves and rest in leaf shelters; fully-grown caterpillars hibernate.
Flight: One brood; from January-May in Florida and Texas, from March-June in the rest of the range.
Caterpillar Hosts: Scrub oak (Quercus ilicifolia) and other shrubby oaks.
Adult Food: Nectar from flowers of heaths (Ericaceae) including wild azalea and blueberry; also blackberry and dandelion.
Habitat: Oak or oak-pine scrub, chaparral, barrens; on well-drained sandy or shaly soils.
Range: In the west from California east to Utah and southern Wyoming; south through the mountains to Arizona, New Mexico, Baja California Norte and central Mexico. In the east from Manitoba south through southern Ontario and the eastern United States to central Florida, the Gulf Coast, and central Texas.
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 73 - 96 of 1649 verified sightings
Observation date: Mar 24, 2015
Submitted by: Rob Wu
Region: Sierra County, New Mexico, United States
Verified by: stevecary
Verified date: Sep 09, 2021
Observation date: May 05, 2014
Submitted by: Eric Hartshaw
Region: Lycoming County, Pennsylvania, United States
Verified by: davidwright
Verified date: Aug 23, 2021
Observation date: May 18, 2021
Submitted by: Ed Rothwell
Region: Washtenaw County, Michigan, United States
Verified by: rosslayberry
Verified date: Jul 29, 2021
Observation date: Jun 25, 2021
Submitted by: Bluefox122
Region: Lancaster County, Pennsylvania, United States
Verified by: davidwright
Verified date: Jun 28, 2021
Observation date: May 14, 2021
Submitted by: MAGORDON
Region: Lucas County, Ohio, United States
Verified by: Ohio97
Verified date: Jun 06, 2021
Observation date: May 27, 2021
Submitted by: Bluefox122
Region: Lebanon County, Pennsylvania, United States
Verified by: davidwright
Verified date: May 28, 2021
Observation date: Apr 23, 2021
Submitted by: Ed Rothwell
Region: Gratiot County, Michigan, United States
Verified by: rosslayberry
Verified date: May 24, 2021
Observation date: May 14, 2021
Submitted by: Rozelle Wright
Region: Los Alamos County, New Mexico, United States
Verified by: stevecary
Verified date: May 19, 2021
Observation date: Apr 30, 2021
Submitted by: Ed Rothwell
Region: Allegan County, Michigan, United States
Verified by: rosslayberry
Verified date: May 01, 2021
Observation date: Apr 19, 2021
Submitted by: JudyLY
Region: Doña Ana County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 27, 2021
Observation date: Apr 19, 2021
Submitted by: Joshua C
Region: Bernalillo County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 27, 2021
Observation date: Apr 19, 2021
Submitted by: TSims
Region: Lancaster County, Pennsylvania, United States
Verified by: davidwright
Verified date: Apr 22, 2021
Observation date: Apr 20, 2021
Submitted by: jmgesell
Region: Carbon County, Pennsylvania, United States
Verified by: davidwright
Verified date: Apr 22, 2021
Observation date: Apr 19, 2021
Submitted by: MAKI
Region: Santa Barbara County, California, United States
Verified by: Ken Davenport
Verified date: Apr 21, 2021
Observation date: Apr 13, 2021
Submitted by: James Lofton
Region: Roosevelt County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 16, 2021
Observation date: Apr 10, 2021
Submitted by: cklindsey
Region: San Bernardino County, California, United States
Verified by: Ken Davenport
Verified date: Apr 13, 2021
Observation date: Apr 09, 2021
Submitted by: JudyLY
Region: Doña Ana County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 13, 2021
Observation date: May 04, 2017
Submitted by: Tommie Rogers
Region: Eagle County, Colorado, United States
Verified by: mikefisher
Verified date: Apr 09, 2021
Observation date: Apr 04, 2021
Submitted by: MAKI
Region: Santa Barbara County, California, United States
Verified by: Ken Davenport
Verified date: Apr 06, 2021
Observation date: Mar 17, 2021
Submitted by: MAKI
Region: La Paz County, Arizona, United States
Verified by: John Saba
Verified date: Apr 01, 2021
Observation date: Mar 28, 2021
Submitted by: guy_incognito
Region: San Bernardino County, California, United States
Verified by: Ken Davenport
Verified date: Mar 29, 2021
Observation date: Mar 21, 2021
Submitted by: TomObrock
Region: Highlands County, Florida, United States
Verified by: John Calhoun
Verified date: Mar 24, 2021
Observation date: Mar 15, 2021
Submitted by: Jonathan Clark
Region: Grant Parish, Louisiana, United States
Verified by: CA Ivy
Verified date: Mar 18, 2021
Observation date: Mar 05, 2021
Submitted by: Mark Salvato
Region: Indian River County, Florida, United States
Verified by: John Calhoun
Verified date: Mar 07, 2021
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