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 1 - 24 of 1636 verified sightings
Observation date: Mar 30, 2024
Submitted by: rconnorsphoto
Region: Wilson County, Tennessee, United States
Verified by: James Steen
Verified date: Apr 01, 2024
Observation date: Mar 24, 2024
Submitted by: matthew5917
Region: Levy County, Florida, United States
Verified by: John Calhoun
Verified date: Mar 25, 2024
Observation date: Mar 21, 2024
Submitted by: Tdloyd
Region: Sumner County, Tennessee, United States
Verified by: Paul Prappas
Verified date: Mar 22, 2024
Observation date: Mar 17, 2024
Submitted by: Tdloyd
Region: Sevier County, Tennessee, United States
Verified by: Paul Prappas
Verified date: Mar 22, 2024
Observation date: Jun 18, 2017
Submitted by: ezeemonee
Region: Salt Lake County, Utah, United States
Verified by: James Steen
Verified date: Sep 11, 2023
Observation date: Jul 05, 2023
Submitted by: DeepSkyKelly
Region: Union County, New Mexico, United States
Verified by: stevecary
Verified date: Jul 06, 2023
Observation date: May 21, 2023
Submitted by: Ed Rothwell
Region: Washtenaw County, Michigan, United States
Verified by: elsner
Verified date: Jun 26, 2023
Observation date: Apr 15, 2023
Submitted by: tjay13
Region: Los Alamos County, New Mexico, United States
Verified by: stevecary
Verified date: Jun 09, 2023
Observation date: May 28, 2023
Submitted by: hockeybruce7
Region: Monroe County, Pennsylvania, United States
Verified by: davidwright
Verified date: Jun 08, 2023
Observation date: Apr 23, 2023
Submitted by: hockeybruce7
Region: Monroe County, Pennsylvania, United States
Verified by: davidwright
Verified date: May 09, 2023
Observation date: May 07, 2023
Submitted by: DeepSkyKelly
Region: Colfax County, New Mexico, United States
Verified by: stevecary
Verified date: May 09, 2023
Observation date: Apr 29, 2023
Submitted by: DeepSkyKelly
Region: Colfax County, New Mexico, United States
Verified by: stevecary
Verified date: May 04, 2023
Observation date: Apr 29, 2023
Submitted by: williamharmonlds
Region: McKinley County, New Mexico, United States
Verified by: stevecary
Verified date: May 04, 2023
Observation date: Apr 23, 2023
Submitted by: Marta Reece
Region: Hidalgo County, New Mexico, United States
Verified by: stevecary
Verified date: May 03, 2023
Observation date: Apr 01, 2023
Submitted by: Tommie Rogers
Region: Madison County, North Carolina, United States
Verified by: Dennis Forsythe
Verified date: Apr 20, 2023
Observation date: Apr 09, 2023
Submitted by: Chrustay
Region: Torrance County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 14, 2023
Observation date: Apr 07, 2023
Submitted by: DeepSkyKelly
Region: Union County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 08, 2023
Observation date: Apr 05, 2023
Submitted by: Cascade Colors
Region: Cumberland County, Tennessee, United States
Verified by: James Steen
Verified date: Apr 07, 2023
Observation date: Mar 12, 2023
Submitted by: John Gibbons
Region: Marion County, Florida, United States
Verified by: John Calhoun
Verified date: Mar 21, 2023
Observation date: Mar 20, 2022
Submitted by: robert.emond
Region: Taylor County, Florida, United States
Verified by: John Calhoun
Verified date: Jan 21, 2023
Observation date: May 11, 2022
Submitted by: stevecary
Region:
Verified by: stevecary
Verified date: Dec 23, 2022
Observation date: Mar 02, 2022
Submitted by: stevecary
Region: Cochise County, Arizona, United States
Verified by: John Saba
Verified date: Oct 31, 2022
Observation date: Apr 14, 2022
Submitted by: stevecary
Region: Quay County, New Mexico, United States
Verified by: stevecary
Verified date: Oct 29, 2022
Observation date: Apr 05, 2021
Submitted by: gpstewart
Region: Anderson County, Texas, United States
Verified by: jwileyrains
Verified date: Oct 09, 2022
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