Attributes of Erynnis persius
Persius Duskywing
Erynnis persius (Scudder, 1863)
Family: Hesperiidae
Subfamily: Pyrginae
Identification: Upperside is brown-black. Forewing has few clear dots and very dim markings; patch at end of cell is grayish. Male forewing has many raised white hairs. Hindwing fringes are dark. Male has a costal fold containing yellow scent scales; female has a patch of scent scales on the 7th abdominal segment.
Wing Span: 1 1/8 - 1 5/8 inches (2.9 - 4.2 cm).
Life History: During the day males perch on hilltops to seek females, usually sitting on the ground or on low twigs. Females lay eggs singly under leaves of the host plants. Caterpillars feed on leaves and live in shelters of rolled or tied leaves. Fully-grown caterpillars hibernate.
Flight: One brood from April-June.
Caterpillar Hosts: Lupine (Lupinus), golden banner (Thermopsis), Lotus, and other legumes.
Adult Food: Flower nectar.
Habitat: Open areas including mountain grasslands, marshes, sand plains, seeps, streamsides.
Range: In the west, from Alaska and the McKenzie River delta south to southeastern Manitoba; south through the western mountains to southern California, southern Arizona, and southeast New Mexico. In the east, northern New England west to Wisconsin; south in the Appalachians to Virginia. Comments: The Columbine, Wild Indigo, and Persius dusky wings belong to the "Persius complex," a confusing group of very similar butterflies.
Conservation: Populations in the Midwest and Northeast found in pine-oak barrens should be monitored and conserved.
NCGR: G4 - Apparently secure globally, though it might be quite rare in parts of its range, especially at the periphery.
Management Needs: Manage habitat of lupine-feeding populations by mechanical disturbance or infrequent burns (no more frequent than every 5 years).
Taxonomy Notes:
Images of Erynnis persius
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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 400 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.
Zoom by using the plus [+] and minus [-] on the left side of the map.
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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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|---|---|---|---|---|---|
| July 09, 1982 | legacy.reporter (Ken Hansen) | Lander County, Nevada, United States | December 01, 2012 | Details | |
| April 30, 1986 | legacy.reporter (George T. Austin) | Lyon County, Nevada, United States | December 01, 2012 | Details | |
| July 30, 1988 | legacy.reporter (Michael Smith) | Esmeralda County, Nevada, United States | December 01, 2012 | Details | |
| June 03, 1984 | legacy.reporter (S. S. McKown) | Clark County, Nevada, United States | December 01, 2012 | Details | |
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July 14, 2012 | swimperi | Gilpin County, Colorado, United States | September 01, 2012 | Details |
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June 16, 2012 | plex1ppus | Missoula County, Montana, United States | July 25, 2012 | Details |
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June 16, 2012 | plex1ppus | Mineral County, Montana, United States | July 25, 2012 | Details |
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July 02, 2011 | js97032@yahoo.com | Linn County, Oregon, United States | January 23, 2012 | Details |
| June 03, 1984 | legacy.reporter (S. S. McKown) | Clark County, Nevada, United States | January 01, 2012 | Details | |
| May 26, 2001 | legacy.reporter (Mike Nelson, MA NHESP) | Plymouth County, Massachusetts, United States | January 01, 2012 | Details | |
| May 29, 2005 | legacy.reporter (Tom Murray) | Plymouth County, Massachusetts, United States | January 01, 2012 | Details | |
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August 07, 2007 | RaisingButterflies.org | Davis County, Utah, United States | November 28, 2011 | Details |
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June 12, 2011 | cpcdolan | Archuleta County, Colorado, United States | July 15, 2011 | Details |
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June 16, 2011 | cpcdolan | Rio Grande County, Colorado, United States | July 15, 2011 | Details |
| June 11, 2011 | davidwdroppers | Chelan County, Washington, United States | June 24, 2011 | Details | |
| June 01, 1996 | legacy.reporter (Kriegel, Robert) | Montcalm County, Michigan, United States | May 01, 2011 | Details | |
| January 01, 1994 | legacy.reporter (Giles) | New London County, Connecticut, United States | May 01, 2011 | Details | |
| January 01, 1957 | legacy.reporter (Hessel) | Litchfield County, Connecticut, United States | May 01, 2011 | Details | |
| January 01, 1994 | legacy.reporter (Maier) | Windham County, Connecticut, United States | May 01, 2011 | Details | |
| January 01, 1960 | legacy.reporter (Remington) | Litchfield County, Connecticut, United States | May 01, 2011 | Details | |
| January 01, 1924 | legacy.reporter (Rogers) | New Haven County, Connecticut, United States | May 01, 2011 | Details | |
| January 01, 1909 | legacy.reporter (unknown) | Litchfield County, Connecticut, United States | May 01, 2011 | Details | |
| May 23, 1996 | legacy.reporter (Glassberg, J.) | New London County, Connecticut, United States | May 01, 2011 | Details | |
| May 23, 1996 | legacy.reporter (Wagner, D. L.) | New London County, Connecticut, United States | May 01, 2011 | Details | |
| June 19, 2006 | Ken Davenport (Ken Davenport) | Esmeralda County, Nevada, United States | May 01, 2011 | Details | |
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May 31, 2010 | J_Martineau | Sheridan County, Wyoming, United States | January 23, 2011 | Details |
| July 06, 1993 | Ken Davenport (Ken Davenport) | Coconino County, Arizona, United States | January 01, 2011 | Details | |
| July 18, 2010 | legacy.reporter (Paul Opler and EviBuckner-Opler ) | Fremont County, Idaho, United States | December 31, 2010 | Details | |
| June 02, 2010 | Ken Davenport (Ken Davenport) | Coconino County, Arizona, United States | December 31, 2010 | Details | |
| June 27, 2005 | legacy.reporter (William Bouton) | Inyo County, California, United States | December 31, 2010 | Details | |
| July 09, 1990 | legacy.reporter (A. M. Shapiro) | Sacramento County, California, United States | August 02, 2010 | Details | |
| July 27, 1989 | legacy.reporter (Richard Kelson) | Tehama County, California, United States | August 02, 2010 | Details | |
| June 05, 1987 | legacy.reporter (Laurence Crabtree) | Shasta County, California, United States | April 02, 2010 | Details | |
| July 01, 1984 | legacy.reporter (James A. Scott) | Ventura County, California, United States | April 02, 2010 | Details | |
| May 21, 1983 | legacy.reporter (Laurence Crabtree) | Lassen County, California, United States | April 02, 2010 | Details | |
| July 03, 1981 | legacy.reporter (A. M. Shapiro) | Alpine County, California, United States | March 09, 2010 | Details | |
| August 23, 1981 | legacy.reporter (A. M. Shapiro) | Placer County, California, United States | March 09, 2010 | Details | |
| May 10, 1990 | legacy.reporter (A. M. Shapiro) | Siskiyou County, California, United States | January 25, 2010 | Details | |
| June 08, 1991 | legacy.reporter (A. M. Shapiro) | Siskiyou County, California, United States | January 25, 2010 | Details | |
| July 12, 1988 | legacy.reporter (A. M. Shapiro) | Siskiyou County, California, United States | January 25, 2010 | Details | |
| July 05, 1991 | legacy.reporter (Laurence Crabtree) | Shasta County, California, United States | January 25, 2010 | Details | |
| July 13, 1977 | legacy.reporter (A. M. Shapiro) | Nevada County, California, United States | January 07, 2010 | Details | |
| April 14, 1976 | legacy.reporter (A. M. Shapiro) | Sacramento County, California, United States | January 07, 2010 | Details | |
| April 19, 2009 | ray.stanford@stanfordalumni.org (Ray Stanford) | Stanislaus County, California, United States | January 06, 2010 | Details | |
| June 23, 1999 | legacy.reporter (Jeffrey Glassberg) | Humboldt County, California, United States | January 05, 2010 | Details | |
| July 15, 1933 | legacy.reporter (John S. Garth) | Mariposa County, California, United States | October 19, 2009 | Details | |
| June 26, 1954 | legacy.reporter (J. W. Tilden) | Mariposa County, California, United States | October 19, 2009 | Details | |
| July 14, 1956 | legacy.reporter (John S. Garth) | Tuolumne County, California, United States | October 19, 2009 | Details | |
| June 23, 1959 | legacy.reporter (John S. Garth) | Mariposa County, California, United States | October 19, 2009 | Details | |
| April 17, 1961 | legacy.reporter (J. W. Tilden) | Mariposa County, California, United States | October 19, 2009 | Details |
