Attributes of Erynnis brizo
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.
Taxonomy Notes:
Images of Erynnis brizo
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The map below displays all verified sighting records in the BAMONA database for this species. Each record is indicated with a yellow dot. The orange dots on the map provide access to information about the 200 most recently verified sightings of this species. In some instances, there are several records at the same location. Use the table view to access these records.
Instructions: Click on the map and move your mouse to pan.
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The fifty most recently verified sightings are below. See more recently verified sightings of all species.
| Observation Date | Submitter | Region |
Verified Date |
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April 15, 2012 | HHowell | Unicoi County, Tennessee, United States | May 10, 2012 | Details |
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March 24, 2012 | yelpurr | Grant County, West Virginia, United States | April 25, 2012 | Details |
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April 15, 2012 | curtis.lehman (Rory Bower) | Mifflin County, Pennsylvania, United States | April 18, 2012 | Details |
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April 07, 2012 | Cheryl Jennings | Hampshire County, West Virginia, United States | April 11, 2012 | Details |
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April 07, 2012 | Cheryl Jennings | Hampshire County, West Virginia, United States | April 11, 2012 | Details |
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April 02, 2012 | curtis.lehman (Marge Van Tassel) | Armstrong County, Pennsylvania, United States | April 09, 2012 | Details |
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April 06, 2012 | Jim Dolan | Columbiana County, Ohio, United States | April 07, 2012 | Details |
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April 01, 2012 | Julius | Monroe County, Tennessee, United States | April 05, 2012 | Details |
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April 03, 2011 | rseidler | Claiborne Parish, Louisiana, United States | March 27, 2012 | Details |
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March 16, 2012 | jftrahan | Claiborne Parish, Louisiana, United States | March 27, 2012 | Details |
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March 12, 2012 | jftrahan | Natchitoches Parish, Louisiana, United States | March 27, 2012 | Details |
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March 15, 2012 | joeschelling | Bernalillo County, New Mexico, United States | March 23, 2012 | Details |
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March 18, 2012 | mdolomieu1 | Webster County, Missouri, United States | March 20, 2012 | Details |
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April 30, 2011 | Matt ODonnell | Chaves County, New Mexico, United States | October 03, 2011 | Details |
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April 10, 2011 | Tom Lotshaw | Monroe County, Indiana, United States | August 03, 2011 | Details |
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March 13, 2011 | Gary Jue | Pima County, Arizona, United States | June 02, 2011 | Details |
| March 13, 2011 | vitaly charny (Vitaly Charny) | Bibb County, Alabama, United States | May 31, 2011 | Details | |
| April 07, 2011 | vitaly charny (Vitaly Charny) | DeKalb County, Alabama, United States | May 31, 2011 | Details | |
| April 09, 2011 | vitaly charny (Vitaly Charny) | Shelby County, Alabama, United States | May 31, 2011 | Details | |
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May 03, 2011 | K Stilwell | Tazewell County, Virginia, United States | May 18, 2011 | Details |
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April 21, 2011 | Nancy Weiss | Albemarle County, Virginia, United States | May 07, 2011 | Details |
| June 01, 1995 | legacy.reporter (Swales, John) | Washtenaw County, Michigan, United States | May 01, 2011 | Details | |
| June 08, 1995 | legacy.reporter (Keilb, Mike) | Washtenaw County, Michigan, United States | May 01, 2011 | Details | |
| June 21, 1995 | Ranger Steve Mueller (Steven J. Mueller) | Kent County, Michigan, United States | May 01, 2011 | Details | |
| June 23, 1995 | Ranger Steve Mueller (Steven J. Mueller) | Kent County, Michigan, United States | May 01, 2011 | Details | |
| July 17, 1995 | legacy.reporter (Essenmacher, Monica) | Huron County, Michigan, United States | May 01, 2011 | Details | |
| May 06, 1996 | legacy.reporter (Farmer, John) | Washtenaw County, Michigan, United States | May 01, 2011 | Details | |
| May 28, 1996 | Ranger Steve Mueller (Steven J. Mueller) | Kent County, Michigan, United States | May 01, 2011 | Details | |
| April 28, 1997 | legacy.reporter (Reinoehl, Jack) | Hillsdale County, Michigan, United States | May 01, 2011 | Details | |
| May 23, 1997 | legacy.reporter (Johnson, Sharon) | Genesee County, Michigan, United States | May 01, 2011 | Details | |
| June 09, 1997 | legacy.reporter (McWhirter, Doug) | Ingham County, Michigan, United States | May 01, 2011 | Details | |
| April 21, 1998 | legacy.reporter (Johnson, Sharon, Jeanne Raffin, Lana Paulley) | Genesee County, Michigan, United States | May 01, 2011 | Details | |
| April 22, 1998 | legacy.reporter (Reinoehl, Jack) | Hillsdale County, Michigan, United States | May 01, 2011 | Details | |
| May 03, 1998 | Ranger Steve Mueller (Steven J. Mueller) | Kent County, Michigan, United States | May 01, 2011 | Details | |
| May 07, 1998 | Ranger Steve Mueller (Steven J. Mueller) | Kalkaska County, Michigan, United States | May 01, 2011 | Details | |
| May 07, 1998 | Ranger Steve Mueller (Steven J. Mueller) | Missaukee County, Michigan, United States | May 01, 2011 | Details | |
| April 26, 1999 | legacy.reporter (Ross, Stephen) | Mecosta County, Michigan, United States | May 01, 2011 | Details | |
| April 29, 1999 | legacy.reporter (Ross, Stephen) | Mecosta County, Michigan, United States | May 01, 2011 | Details | |
| May 01, 1999 | legacy.reporter (Reinoehl, Jack) | Hillsdale County, Michigan, United States | May 01, 2011 | Details | |
| May 01, 1999 | legacy.reporter (Ross, Stephen) | Mecosta County, Michigan, United States | May 01, 2011 | Details | |
| May 04, 1999 | Ranger Steve Mueller (Steven J. Mueller) | Missaukee County, Michigan, United States | May 01, 2011 | Details | |
| June 05, 1999 | legacy.reporter (Perkins, Owen A.) | Chippewa County, Michigan, United States | May 01, 2011 | Details | |
| April 26, 2000 | legacy.reporter (Reinoehl, Jack) | Hillsdale County, Michigan, United States | May 01, 2011 | Details | |
| April 28, 2000 | legacy.reporter (Ross, Stephen) | Mecosta County, Michigan, United States | May 01, 2011 | Details | |
| May 01, 2000 | Ranger Steve Mueller (Steven J. Mueller) | Kent County, Michigan, United States | May 01, 2011 | Details | |
| May 01, 2000 | legacy.reporter (Moran, Michael) | Muskegon County, Michigan, United States | May 01, 2011 | Details | |
| May 07, 2000 | legacy.reporter (Johnson, Sharon) | Genesee County, Michigan, United States | May 01, 2011 | Details | |
| June 05, 2000 | legacy.reporter (Ross, Stephen) | Mecosta County, Michigan, United States | May 01, 2011 | Details | |
| June 05, 2003 | legacy.reporter (Rolnick, Julia; Rolnick, Davie) | Bennington County, Vermont, United States | May 01, 2011 | Details | |
| January 01, 1956 | legacy.reporter (Austin) | Hartford County, Connecticut, United States | May 01, 2011 | Details |
