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
Verified Sightings
Displaying 1 - 24 of 369 verified sightings
Observation date: Jul 01, 2009
Submitted by: Team Kweeper
Region: El Dorado County, California, United States
Verified by: Ken Davenport
Verified date: Jul 17, 2018
Observation date: Jun 29, 2016
Submitted by: jaymahoney
Region: Eagle County, Colorado, United States
Verified by: mikefisher
Verified date: Oct 28, 2017
Observation date: Sep 03, 2017
Submitted by: Robert Gorman
Region: Mono County, California, United States
Verified by: Ken Davenport
Verified date: Sep 22, 2017
Observation date: Sep 03, 2017
Submitted by: Robert Gorman
Region: Mono County, California, United States
Verified by: Ken Davenport
Verified date: Sep 22, 2017
Observation date: Sep 02, 2017
Submitted by: diwalks2@gmail.com
Region: Mono County, California, United States
Verified by: Ken Davenport
Verified date: Sep 13, 2017
Observation date: Sep 03, 2017
Submitted by: Robert Gorman
Region: Mono County, California, United States
Verified by: Ken Davenport
Verified date: Sep 12, 2017
Observation date: Aug 26, 2017
Submitted by: icosahedron
Region: Nevada County, California, United States
Verified by: Ken Davenport
Verified date: Aug 30, 2017
Observation date: Jul 27, 2017
Submitted by: Thomlinson
Region: Madera County, California, United States
Verified by: Ken Davenport
Verified date: Aug 07, 2017
Observation date: Aug 08, 2016
Submitted by: yardbird
Region: Tuolumne County, California, United States
Verified by: Ken Davenport
Verified date: Aug 16, 2016
Observation date: Jun 29, 2015
Submitted by: pdxgene711
Region: Jefferson County, Oregon, United States
Verified by: Ken Davenport
Verified date: Jun 30, 2015
Observation date: Aug 11, 2014
Submitted by: plex1ppus
Region: Mineral County, Montana, United States
Verified by: J_Martineau
Verified date: Aug 19, 2014
Observation date: Jul 30, 2014
Submitted by: bwilliams
Region: Missoula County, Montana, United States
Verified by: J_Martineau
Verified date: Aug 18, 2014
Observation date: Jul 30, 2014
Submitted by: bwilliams
Region: Missoula County, Montana, United States
Verified by: J_Martineau
Verified date: Aug 18, 2014
Observation date: Jul 30, 2014
Submitted by: bwilliams
Region: Missoula County, Montana, United States
Verified by: J_Martineau
Verified date: Aug 18, 2014
Observation date: Jul 12, 2013
Submitted by: Ann and Rob Simpson
Region: Tuolumne County, California, United States
Verified by: Ken Davenport
Verified date: Nov 01, 2013
Observation date: Aug 05, 2013
Submitted by: MAKI
Region: Tuolumne County, California, United States
Verified by: Ken Davenport
Verified date: Aug 08, 2013
Observation date: Jul 11, 1982
Submitted by: legacy.reporter (K Hansen-S. Mattoon)
Region: Elko County, Nevada, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 01, 2012
Observation date: Jun 27, 1985
Submitted by: legacy.reporter (George T. Austin)
Region: Lyon County, Nevada, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 01, 2012
Observation date: Aug 02, 2011
Submitted by: Nancy Lea Sandy
Region: Natrona County, Wyoming, United States
Verified by: kent
Verified date: Nov 26, 2012
Observation date: Jul 05, 2011
Submitted by: legacy.reporter (Ken Kertell)
Region: White Pine County, Nevada, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 01, 2012
Observation date: Jul 06, 2011
Submitted by: legacy.reporter (Ken Kertell)
Region: White Pine County, Nevada, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 01, 2012
Observation date: Jun 26, 2012
Submitted by: Ken Davenport (Ken Davenport)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 01, 2012
Observation date: Jun 26, 2012
Submitted by: Ken Davenport (Ken Davenport)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 01, 2012
Observation date: Jul 20, 2011
Submitted by: mgiffen
Region: Modoc County, California, United States
Verified by: Ken Davenport
Verified date: Sep 13, 2011
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