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 49 - 72 of 1649 verified sightings
Observation date: Apr 05, 2020
Submitted by: Tommie Rogers
Region: Marion County, Tennessee, United States
Verified by: James Steen
Verified date: May 30, 2022
Observation date: Apr 03, 2018
Submitted by: ChrissyL
Region: Washington County, Tennessee, United States
Verified by: James Steen
Verified date: May 30, 2022
Observation date: Apr 05, 2018
Submitted by: ChrissyL
Region: Washington County, Tennessee, United States
Verified by: James Steen
Verified date: May 30, 2022
Observation date: Apr 30, 2018
Submitted by: ChrissyL
Region: Sullivan County, Tennessee, United States
Verified by: James Steen
Verified date: May 30, 2022
Observation date: Apr 05, 2018
Submitted by: ChrissyL
Region: Washington County, Tennessee, United States
Verified by: James Steen
Verified date: May 30, 2022
Observation date: May 23, 2022
Submitted by: DeepSkyKelly
Region: Colfax County, New Mexico, United States
Verified by: stevecary
Verified date: May 26, 2022
Observation date: May 15, 2022
Submitted by: Marta Reece
Region: Grant County, New Mexico, United States
Verified by: stevecary
Verified date: May 17, 2022
Observation date: May 12, 2022
Submitted by: Eric Hartshaw
Region: Lycoming County, Pennsylvania, United States
Verified by: davidwright
Verified date: May 13, 2022
Observation date: May 04, 2022
Submitted by: Cactuswren1976
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: May 08, 2022
Observation date: Apr 28, 2022
Submitted by: chneal
Region: Los Alamos County, New Mexico, United States
Verified by: stevecary
Verified date: May 08, 2022
Observation date: Apr 30, 2022
Submitted by: DeepSkyKelly
Region: Colfax County, New Mexico, United States
Verified by: stevecary
Verified date: May 07, 2022
Observation date: Apr 26, 2022
Submitted by: bonfrey
Region: Cibola County, New Mexico, United States
Verified by: stevecary
Verified date: May 06, 2022
Observation date: Apr 25, 2022
Submitted by: gjkoppel
Region: Butler County, Pennsylvania, United States
Verified by: davidwright
Verified date: Apr 30, 2022
Observation date: Apr 19, 2022
Submitted by: DeepSkyKelly
Region: Union County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 20, 2022
Observation date: Apr 17, 2022
Submitted by: topper72
Region: Los Alamos County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 18, 2022
Observation date: Apr 09, 2022
Submitted by: Chrustay
Region: Socorro County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 16, 2022
Observation date: Apr 08, 2022
Submitted by: Marta Reece
Region: Doña Ana County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 12, 2022
Observation date: Apr 09, 2022
Submitted by: Cactuswren1976
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 11, 2022
Observation date: Mar 27, 2022
Submitted by: Joshua C
Region: Bernalillo County, New Mexico, United States
Verified by: stevecary
Verified date: Mar 28, 2022
Observation date: Mar 11, 2022
Submitted by: jmgesell
Region: Sarasota County, Florida, United States
Verified by: John Calhoun
Verified date: Mar 14, 2022
Observation date: Apr 09, 2021
Submitted by: ncrosbyrd
Region: Haywood County, North Carolina, United States
Verified by: Dennis Forsythe
Verified date: Feb 05, 2022
Observation date: Apr 04, 2004
Submitted by: Kim Fleming
Region: Abbeville County, South Carolina, United States
Verified by: Dennis Forsythe
Verified date: Jan 21, 2022
Observation date: Apr 20, 2017
Submitted by: Mark Salvato
Region: Graham County, North Carolina, United States
Verified by: Dennis Forsythe
Verified date: Nov 27, 2021
Observation date: May 11, 2014
Submitted by: BarbSendelbach
Region: Warren County, New Jersey, United States
Verified by: BarbSendelbach
Verified date: Nov 16, 2021
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