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.
Please donate!
We depend on donations to keep Butterflies and Moths of North America freely available. We want to express our gratitude to all who showed their support by making a contribution this year. You can donate to support this project at any time.
Advertise with us!
Do you have a product or service that you think would interest BAMONA users? If you would like to advertise on this website, contact us by email, or use the contact form and select the "Advertising" category.
Verified Sightings
Displaying 433 - 456 of 2943 verified sightings
Observation date: Jun 13, 2017
Submitted by: NCARI
Region: Dare County, North Carolina, United States
Verified by: Dennis Forsythe
Verified date: Dec 08, 2020
Observation date: Jun 23, 2017
Submitted by: NCARI
Region: Dare County, North Carolina, United States
Verified by: Dennis Forsythe
Verified date: Dec 08, 2020
Observation date: Jun 26, 2017
Submitted by: NCARI
Region: Dare County, North Carolina, United States
Verified by: Dennis Forsythe
Verified date: Dec 08, 2020
Observation date: Jul 06, 2017
Submitted by: NCARI
Region: Dare County, North Carolina, United States
Verified by: Dennis Forsythe
Verified date: Dec 08, 2020
Observation date: Jul 06, 2017
Submitted by: NCARI
Region: Dare County, North Carolina, United States
Verified by: Dennis Forsythe
Verified date: Dec 08, 2020
Observation date: Jul 12, 2017
Submitted by: NCARI
Region: Dare County, North Carolina, United States
Verified by: Dennis Forsythe
Verified date: Dec 08, 2020
Observation date: Jul 26, 2017
Submitted by: NCARI
Region: Dare County, North Carolina, United States
Verified by: Dennis Forsythe
Verified date: Dec 08, 2020
Observation date: Jul 27, 2017
Submitted by: NCARI
Region: Dare County, North Carolina, United States
Verified by: Dennis Forsythe
Verified date: Dec 08, 2020
Observation date: Aug 03, 2017
Submitted by: NCARI
Region: Dare County, North Carolina, United States
Verified by: Dennis Forsythe
Verified date: Dec 08, 2020
Observation date: Jul 30, 2018
Submitted by: mellielong
Region: Wake County, North Carolina, United States
Verified by: Dennis Forsythe
Verified date: Dec 07, 2020
Observation date: Sep 10, 2017
Submitted by: KateTweedy
Region: Brunswick County, North Carolina, United States
Verified by: Dennis Forsythe
Verified date: Dec 06, 2020
Observation date: Jun 20, 2019
Submitted by: Niki Robertson
Region: Wake County, North Carolina, United States
Verified by: Dennis Forsythe
Verified date: Dec 06, 2020
Observation date: Jun 27, 2019
Submitted by: Niki Robertson
Region: North Carolina, United States
Verified by: Dennis Forsythe
Verified date: Dec 06, 2020
Observation date: Aug 18, 2019
Submitted by: LinCepek
Region: Surry County, North Carolina, United States
Verified by: Dennis Forsythe
Verified date: Dec 05, 2020
Observation date: Sep 01, 2018
Submitted by: maryskbaker
Region: Sarpy County, Nebraska, United States
Verified by: J_Martineau
Verified date: Dec 04, 2020
Observation date: Jul 07, 2018
Submitted by: acks123
Region: Lake County, Indiana, United States
Verified by: John Calhoun
Verified date: Dec 02, 2020
Observation date: Jul 16, 2020
Submitted by: billd
Region: Garfield County, Oklahoma, United States
Verified by: CA Ivy
Verified date: Nov 11, 2020
Observation date: Jul 16, 2020
Submitted by: billd
Region: Garfield County, Oklahoma, United States
Verified by: CA Ivy
Verified date: Nov 11, 2020
Observation date: Jul 16, 2020
Submitted by: billd
Region: Garfield County, Oklahoma, United States
Verified by: CA Ivy
Verified date: Nov 11, 2020
Observation date: Jul 16, 2020
Submitted by: billd
Region: Garfield County, Oklahoma, United States
Verified by: CA Ivy
Verified date: Nov 11, 2020
Observation date: Jul 16, 2020
Submitted by: billd
Region: Garfield County, Oklahoma, United States
Verified by: CA Ivy
Verified date: Nov 11, 2020
Observation date: Jul 16, 2020
Submitted by: billd
Region: Garfield County, Oklahoma, United States
Verified by: CA Ivy
Verified date: Nov 11, 2020
Observation date: May 27, 2020
Submitted by: stevecary
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Nov 03, 2020
Observation date: Jul 04, 2011
Submitted by: pkondrashov
Region: Adair County, Missouri, United States
Verified by: CA Ivy
Verified date: Oct 26, 2020
- ‹ previous
- 19 of 123
- next ›