Mournful Duskywing
Erynnis tristis (Boisduval, 1852)
Family: Hesperiidae
Subfamily: Pyrginae
Identification: Male has a costal fold containing yellow scent scales; female has a patch of scent scales on the 7th abdominal segment. Upperside of wings is dark brown-black with some transparent spots. Spots are larger in the female. Underside of hindwing is dark brown with a row of long white spots near the margin.
Wing Span: 1 1/4 - 1 15/16 inches (3.2 - 4.9 cm).
Life History: Males perch on hilltops all day to watch for females. Eggs are laid singly on new growth of the host plant. Caterpillars feed on young leaves and rest in shelters of rolled or tied leaves. Caterpillars of the last brood hibernate.
Flight: Three broods in Texas from March-April, June-July, and September-November.
Caterpillar Hosts: Various oaks including coast live oak (Quercus agrifolia), blue oak (Q. douglasii), and valley oak (Q. lobata).
Adult Food: Flower nectar.
Habitat: Oak woodlands.
Range: Northern California south through central Arizona, southern New Mexico, the mountains of Mexico, and Central America to Colombia. Strays to South Texas.
Conservation: Not usually required.
NCGR: G4 - Apparently secure globally, though it might be quite rare in parts of its range, especially at the periphery.
Management Needs: None reported.
Comments: NULL
Get your BAMONA Gear!
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 1 - 24 of 435 verified sightings
Observation date: Jun 28, 1982
Submitted by: papilio1
Region: Tehama County, California, United States
Verified by: Ken Davenport
Verified date: Dec 06, 2024
Observation date: Jul 07, 1983
Submitted by: papilio1
Region: Tehama County, California, United States
Verified by: Ken Davenport
Verified date: Dec 06, 2024
Observation date: Aug 10, 1992
Submitted by: papilio1
Region: Glenn County, California, United States
Verified by: Ken Davenport
Verified date: Dec 06, 2024
Observation date: Oct 28, 2024
Submitted by: Paul Prappas
Region: Cameron County, Texas, United States
Verified by: Paul Prappas
Verified date: Oct 28, 2024
Observation date: Sep 22, 2024
Submitted by: Zencoyote
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: Sep 22, 2024
Observation date: Aug 24, 2024
Submitted by: Jennabrooke
Region: Ventura County, California, United States
Verified by: Ken Davenport
Verified date: Aug 24, 2024
Observation date: Aug 24, 2024
Submitted by: Jennabrooke
Region: Ventura County, California, United States
Verified by: Ken Davenport
Verified date: Aug 24, 2024
Observation date: Aug 14, 2024
Submitted by: Lisahug
Region: Fresno County, California, United States
Verified by: Ken Davenport
Verified date: Aug 24, 2024
Observation date: May 07, 2023
Submitted by: dvollmar
Region: Bandera County, Texas, United States
Verified by: jwileyrains
Verified date: Aug 14, 2024
Observation date: Jul 13, 2024
Submitted by: ezeemonee
Region: Kern County, California, United States
Verified by: Ken Davenport
Verified date: Jul 18, 2024
Observation date: Jul 10, 2024
Submitted by: ezeemonee
Region: Santa Barbara County, California, United States
Verified by: Ken Davenport
Verified date: Jul 12, 2024
Observation date: May 05, 2024
Submitted by: mstanek
Region: Los Angeles County, California, United States
Verified by: Ken Davenport
Verified date: May 06, 2024
Observation date: Apr 11, 2024
Submitted by: ShannonLevine
Region: Placer County, California, United States
Verified by: John Calhoun
Verified date: Apr 27, 2024
Observation date: Mar 13, 2024
Submitted by: sfelton
Region: Ventura County, California, United States
Verified by: Ken Davenport
Verified date: Mar 15, 2024
Observation date: Feb 15, 2024
Submitted by: MAKI
Region: Ventura County, California, United States
Verified by: Ken Davenport
Verified date: Mar 11, 2024
Observation date: Feb 15, 2024
Submitted by: MAKI
Region: Ventura County, California, United States
Verified by: Ken Davenport
Verified date: Mar 11, 2024
Observation date: Feb 16, 2024
Submitted by: mstanek
Region: Ventura County, California, United States
Verified by: Ken Davenport
Verified date: Feb 17, 2024
Observation date: Oct 11, 2023
Submitted by: katrinaoller
Region: Alameda County, California, United States
Verified by: Ken Davenport
Verified date: Dec 01, 2023
Observation date: Oct 08, 2023
Submitted by: Sue Bocchicchio
Region: Orange County, California, United States
Verified by: Ken Davenport
Verified date: Oct 28, 2023
Observation date: Sep 10, 2023
Submitted by: Lisahug
Region: Sonoma County, California, United States
Verified by: Ken Davenport
Verified date: Oct 07, 2023
Observation date: Sep 10, 2023
Submitted by: Lisahug
Region: Sonoma County, California, United States
Verified by: Ken Davenport
Verified date: Oct 06, 2023
Observation date: Sep 06, 2023
Submitted by: hasfitz5
Region: Contra Costa County, California, United States
Verified by: Ken Davenport
Verified date: Sep 09, 2023
Observation date: Sep 03, 2023
Submitted by: mstanek
Region: Ventura County, California, United States
Verified by: Ken Davenport
Verified date: Sep 06, 2023
Observation date: Aug 12, 2023
Submitted by: ronstorey
Region: Sonoma County, California, United States
Verified by: Ken Davenport
Verified date: Aug 13, 2023
- 1 of 19
- next ›