Great Basin Fritillary
Speyeria egleis (Behr, 1862)
Family: Nymphalidae
Subfamily: Heliconiinae
Identification: Upperside bright to dull orange-brown with dark markings evenly spaced. Underside of hindwing has triangular, silver submarginal spots; other spots small with brown edging; spots may or may not be silvered.
Wing Span: 1 3/4 - 2 3/8 inches (4.5 - 6 cm).
Life History: Males patrol during the day for females, who lay eggs on leaf litter near violets. First-stage caterpillars hibernate unfed until spring, when they feed on violet leaves.
Flight: One brood from late June-August.
Caterpillar Hosts: Violets including Viola adunca, V. nuttallii, V. purpurea, and V. walteri.
Adult Food: Flower nectar.
Habitat: Mountain meadows, forest openings, exposed rocky ridges.
Range: North Dakota southwest through Oregon to California, south to Colorado.
Conservation: Not usually of concern but subspecies tehachapina has a very small range and could be devastated by a single event. Speyeria egleis tehachapina has The Nature Conservancy rank of T3 -Very rare or local throughout its range or found locally in a restricted range (21 to 100 occurrences). (Threatened throughout its range). Speyeria egleis as a whole has the The Nature Conservancy Global Rank of G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
NCGR:
Management Needs: Monitor subspecies tehachapina and evaluate for conservation action.
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 25 - 48 of 427 verified sightings
Observation date: Jul 30, 2017
Submitted by: Mark Salvato
Region: Alpine County, California, United States
Verified by: Ken Davenport
Verified date: Nov 13, 2021
Observation date: Jul 12, 2021
Submitted by: mongoose
Region: Glacier County, Montana, United States
Verified by: J_Martineau
Verified date: Sep 18, 2021
Observation date: Jul 09, 2021
Submitted by: mongoose
Region: Montana, United States
Verified by: J_Martineau
Verified date: Sep 18, 2021
Observation date: Jul 24, 2021
Submitted by: mongoose
Region: Glacier County, Montana, United States
Verified by: J_Martineau
Verified date: Sep 18, 2021
Observation date: Jul 24, 2021
Submitted by: mongoose
Region: Glacier County, Montana, United States
Verified by: J_Martineau
Verified date: Sep 18, 2021
Observation date: Jul 24, 2021
Submitted by: mongoose
Region: Glacier County, Montana, United States
Verified by: J_Martineau
Verified date: Sep 18, 2021
Observation date: Jul 24, 2021
Submitted by: mongoose
Region: Glacier County, Montana, United States
Verified by: J_Martineau
Verified date: Sep 18, 2021
Observation date: Aug 14, 2021
Submitted by: sfbaywildlife
Region: Mariposa County, California, United States
Verified by: Ken Davenport
Verified date: Aug 25, 2021
Observation date: Aug 14, 2021
Submitted by: sfbaywildlife
Region: Mariposa County, California, United States
Verified by: Ken Davenport
Verified date: Aug 25, 2021
Observation date: Aug 14, 2021
Submitted by: sfbaywildlife
Region: Mariposa County, California, United States
Verified by: Ken Davenport
Verified date: Aug 25, 2021
Observation date: Jul 15, 2021
Submitted by: tsimpson
Region: Klamath County, Oregon, United States
Verified by: Ken Davenport
Verified date: Aug 22, 2021
Observation date: Jul 24, 2021
Submitted by: A Terrible Huma...
Region: Tuolumne County, California, United States
Verified by: Ken Davenport
Verified date: Aug 11, 2021
Observation date: Aug 03, 2021
Submitted by: glennfine
Region: Trinity County, California, United States
Verified by: Ken Davenport
Verified date: Aug 07, 2021
Observation date: Aug 01, 2021
Submitted by: glennfine
Region: California, United States
Verified by: Ken Davenport
Verified date: Aug 07, 2021
Observation date: Jul 20, 2021
Submitted by: mstanek
Region: Mariposa County, California, United States
Verified by: Ken Davenport
Verified date: Jul 21, 2021
Observation date: Jun 28, 2021
Submitted by: tideport
Region: Nevada County, California, United States
Verified by: Ken Davenport
Verified date: Jul 03, 2021
Observation date: Jul 26, 2020
Submitted by: gasigr
Region: Klamath County, Oregon, United States
Verified by: Ken Davenport
Verified date: Mar 30, 2021
Observation date: Aug 14, 2020
Submitted by: cklindsey
Region: Washoe County, Nevada, United States
Verified by: Ken Davenport
Verified date: Aug 18, 2020
Observation date: Aug 08, 2020
Submitted by: cklindsey
Region: Walla Walla County, Washington, United States
Verified by: davidwdroppers
Verified date: Aug 10, 2020
Observation date: Jul 25, 2020
Submitted by: papilio1
Region: Washoe County, Nevada, United States
Verified by: Ken Davenport
Verified date: Jul 29, 2020
Observation date: Jul 20, 2020
Submitted by: Gary Nordell
Region: Siskiyou County, California, United States
Verified by: Ken Davenport
Verified date: Jul 20, 2020
Observation date: Jul 09, 2020
Submitted by: Gary Nordell
Region: California, United States
Verified by: Ken Davenport
Verified date: Jul 15, 2020
Observation date: Aug 29, 2019
Submitted by: Robert Gorman
Region: California, United States
Verified by: Ken Davenport
Verified date: Dec 09, 2019
Observation date: Jun 29, 2019
Submitted by: gasigr
Region: Jackson County, Oregon, United States
Verified by: Ken Davenport
Verified date: Nov 04, 2019
- ‹ previous
- 2 of 18
- next ›