Attributes of Erynnis horatius

Horace's Duskywing
Erynnis horatius (Scudder & Burgess, 1870)

Family: Hesperiidae
Subfamily: Pyrginae
Identification: Fringes are brown. Upperside of male forewing is dark brown with little contrast and no white overscaling. Upperside of female forewing is light brown with a contrasting pattern and large transparent spots. Underside of hindwing is usually without 2 spots below the apex. Male has a costal fold containing yellow scent scales; female has a patch of scent scales on the 7th abdominal segment.
Wing Span: 1 7/16 - 1 15/16 inches (3.6 - 4.9 cm).
Life History: To seek females, males perch at the ends of twigs on hilltops or slopes about 1 foot above the ground. Mating has been observed around midday; females deposit eggs singly on new growth of the host. Caterpillars feed on young leaves and rest in leaf nests. Caterpillars of the last brood hibernate.
Flight: Two broods in the north from April-September, three broods in the Deep South and Texas from January-November.
Caterpillar Hosts: Both red and white oaks including willow oak (Quercus phellos), northern red oak (Q. velutina), scrub oak (Q. ilicifolia), water oak (Q. nigra), post oak (Q. stellata), and live oak (Q. virginiana).
Adult Food: Horace\'s Duskywing visits flower up to about 4.5 feet tall including dogbane, buttonbush, sneezeweed, goldenrod, peppermint, boneset, and winter cress.
Habitat: Open woodlands and edges, clearings, fencerows, wooded swamps, power-line right-of-ways, open fields, roadsides.
Range: Massachusetts west to eastern South Dakota; south through most of the eastern United States to Florida, the Gulf Coast, and South Texas; south in the west through southeastern Utah, Colorado, northeastern Arizona, and New Mexico.
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 horatius

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Erynnis horatius - Erynnis_horatius.jpg

The map below displays all BAMONA data for this species and has three different data layers:
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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
May 14, 2016 scfl47 Indian River County, Florida, United States May 18, 2016 Details
May 14, 2016 Gary The Villages Sumter County, Florida, United States May 18, 2016 Details
May 03, 2016 ncrosbyrd Leon County, Florida, United States May 18, 2016 Details
May 03, 2016 ncrosbyrd Leon County, Florida, United States May 18, 2016 Details
May 02, 2016 jjflossem Hernando County, Florida, United States May 03, 2016 Details
March 12, 2016 ncrosbyrd Leon County, Florida, United States March 26, 2016 Details
March 25, 2016 CA Ivy Sebastian County, Arkansas, United States March 25, 2016 Details
August 29, 2015 tom nolan Burlington County, New Jersey, United States February 29, 2016 Details
June 02, 2015 billwx Garfield County, Oklahoma, United States February 28, 2016 Details
September 25, 2015 tom nolan Cape May County, New Jersey, United States February 27, 2016 Details
July 04, 2015 dgardner Charleston County, South Carolina, United States February 14, 2016 Details
June 02, 2015 Jonathan Clark Catahoula Parish, Louisiana, United States February 09, 2016 Details
June 20, 2015 Ken Bosso East Baton Rouge Parish, Louisiana, United States February 09, 2016 Details
June 22, 2015 Ken Bosso East Baton Rouge Parish, Louisiana, United States February 09, 2016 Details
July 05, 2015 cosmic_cat Hopkins County, Texas, United States February 09, 2016 Details
July 04, 2015 Jonathan Clark La Salle Parish, Louisiana, United States February 09, 2016 Details
August 16, 2015 Jonathan Clark Grant Parish, Louisiana, United States February 09, 2016 Details
September 06, 2015 Jonathan Clark La Salle Parish, Louisiana, United States February 09, 2016 Details
September 09, 2015 Martin and Sara Goliad County, Texas, United States February 09, 2016 Details
September 18, 2015 gpstewart Texas, United States, Williamson County February 09, 2016 Details
November 08, 2015 ncrosbyrd Hidalgo County, Texas, United States February 09, 2016 Details
June 08, 2013 tjrickert Mercer County, Pennsylvania, United States February 03, 2016 Details
April 24, 2011 david.govoni Richmond City County, Virginia, United States January 11, 2016 Details
May 19, 2010 flacracker Adams County, Mississippi, United States January 11, 2016 Details
May 05, 2012 ncrosbyrd McIntosh County, Georgia, United States January 01, 2016 Details
June 03, 2014 ncrosbyrd McIntosh County, Georgia, United States December 23, 2015 Details
October 25, 2015 BOGwalker Sarasota County, Florida, United States December 03, 2015 Details
July 06, 2009 Mary Franceline Malone Powhatan County, Virginia, United States November 14, 2015 Details
July 17, 2015 curtis.lehman Madison County, Virginia, United States November 11, 2015 Details
October 08, 2015 rjcohrs Hancock County, Indiana, United States November 06, 2015 Details
September 25, 2012 fotog1939 Polk County, Florida, United States October 07, 2015 Details
July 20, 2015 n_meadows_jr Alexandria City County, Virginia, United States October 02, 2015 Details
September 13, 2015 stephen stedman Jackson County, Tennessee, United States September 13, 2015 Details
September 06, 2015 Doug Bruce Stewart County, Tennessee, United States September 09, 2015 Details
September 07, 2015 stephen stedman Perry County, Tennessee, United States September 09, 2015 Details
August 15, 2015 Jeff Trahan Howard County, Arkansas, United States September 02, 2015 Details
August 16, 2015 stephen stedman Putnam County, Tennessee, United States August 29, 2015 Details
August 14, 2015 jjflossem Hernando County, Florida, United States August 29, 2015 Details
August 26, 2015 amealer Hamilton County, Tennessee, United States August 28, 2015 Details
July 26, 2015 malarchie Hunterdon County, New Jersey, United States August 24, 2015 Details
August 21, 2015 aoseeley Fairfax County, Virginia, United States August 24, 2015 Details
August 16, 2015 Doug Bruce Overton County, Tennessee, United States August 21, 2015 Details
August 21, 2015 CA Ivy Sebastian County, Arkansas, United States August 21, 2015 Details
July 12, 2015 Chesaloosa Caroline County, Maryland, United States August 18, 2015 Details
July 30, 2015 John LeBlanc Chesterfield County, Virginia, United States August 17, 2015 Details
August 07, 2015 dagasch Taylor County, Florida, United States August 17, 2015 Details
August 09, 2015 Niayre Cobb County, Georgia, United States August 14, 2015 Details
August 08, 2015 Doug Bruce Lawrence County, Tennessee, United States August 08, 2015 Details
August 05, 2015 ButterBelle Putnam County, Tennessee, United States August 05, 2015 Details
July 26, 2015 Jeff Trahan De Soto Parish, Louisiana, United States July 29, 2015 Details