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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Erynnis persius - erynnis_persius_fredericki_caterpillar5a_raisingbutterflies.jpg

Erynnis persius - erynnis_persius_fredericki_caterpillar5a_raisingbutterflies.jpg
Erynnis persius - erynnis_persius_fredericki_caterpillar5b_raisingbutterflies.jpg

Erynnis persius - erynnis_persius_fredericki_caterpillar5b_raisingbutterflies.jpg

The map below displays all BAMONA data for this species and has three different data layers:
1. All records (yellow dots)   2. Recently verified records (orange dots)*   3. US county records (purple)

There are also three base layers: 1. Satellite    2. Normal   3. Hybrid

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*The orange dots on the map provide access to information about the 400 most recently verified sightings of this species. Sometimes, there are several records at the same location. Use the table view to access these records.

By default, the fifty most recently verified sightings are below. Sort by Observation Date to see the most recent sightings, or filter the sightings by region to get a regional list.

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Observation Date Submitter Region Verified Datesort icon
June 24, 2014 rcav Yellowstone National Park County, Wyoming, United States September 29, 2014 Details
June 25, 2014 janazak Yukon Territory, Canada July 28, 2014 Details
June 25, 2014 janazak Yukon Territory, Canada July 28, 2014 Details
May 24, 2014 plex1ppus Spokane County, Washington, United States July 03, 2014 Details
June 24, 2014 Samsara Chapman Lewis And Clark County, Montana, United States July 01, 2014 Details
June 23, 2014 John Ashley Flathead County, Montana, United States June 25, 2014 Details
May 18, 2013 Tommie Rogers San Juan County, Utah, United States February 20, 2014 Details
July 03, 2011 randimal Okanogan County, Washington, United States December 26, 2013 Details
June 16, 2013 J_Martineau Big Horn County, Wyoming, United States December 13, 2013 Details
July 02, 2013 Nancy Lea Sandy Natrona County, Wyoming, United States August 04, 2013 Details
May 26, 2013 allelopath Santa Fe County, New Mexico, United States July 03, 2013 Details
May 15, 2013 Jeanne Dammarell Pend Oreille County, Washington, United States June 23, 2013 Details
June 02, 2013 aarongunnar Burnett County, Wisconsin, United States June 05, 2013 Details
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
July 14, 2012 swimperi Gilpin County, Colorado, United States September 01, 2012 Details
June 16, 2012 plex1ppus Missoula County, Montana, United States July 25, 2012 Details
June 16, 2012 plex1ppus Mineral County, Montana, United States July 25, 2012 Details
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
May 30, 2006 legacy.reporter (Tom Murray #) Plymouth County, Massachusetts, United States January 01, 2012 Details
May 31, 2006 legacy.reporter (Tom Murray #) Plymouth County, Massachusetts, United States January 01, 2012 Details
May 20, 2006 legacy.reporter (MBC (Murray+Nielsen)) Plymouth County, Massachusetts, United States January 01, 2012 Details
May 26, 2007 legacy.reporter (MBC (Murray+Nielsen)) Plymouth County, Massachusetts, United States January 01, 2012 Details
August 07, 2007 RaisingButterflies.org Davis County, Utah, United States November 28, 2011 Details
June 12, 2011 cpcdolan Archuleta County, Colorado, United States July 15, 2011 Details
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
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