Mormon Fritillary
Speyeria mormonia (Boisduval, 1869)
Family: Nymphalidae
Subfamily: Heliconiinae
Identification: Small, with large rounded antennal clubs. Upperside tawny to orange-brown; male with no black scales on veins. Underside of hindwing orange-brown; base sometimes slightly darker or greenish. Spots are usually silvered.
Wing Span: 1 1/2 - 2 3/8 inches (3.8 - 6.1 cm).
Life History: Males patrol near the ground in open areas for females. Eggs are laid singly on leaf litter near host plants. Caterpillars hatch but do not feed, hibernating until spring when they eat the host leaves.
Flight: One flight from June-September.
Caterpillar Hosts: Violets including Viola adunca, V. nuttallii, V. nephrophylla, and V. palustris.
Adult Food: Nectar from a variety of flowers including goldenrod.
Habitat: Mountain meadows and fell-fields, moist prairie valleys, subarctic forest openings.
Range: Western mountains from southern Alaska south and east to Manitoba and the Dakotas; south to central California, eastern Nevada, southeastern Arizona, and northern New Mexico.
Conservation: Not usually of concern.
NCGR: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
Management Needs: None reported.
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Verified Sightings
Displaying 1 - 24 of 699 verified sightings
Observation date: Jun 05, 2012
Submitted by: RobSimpson
Region: Teton County, Wyoming, United States
Verified by: J_Martineau
Verified date: Apr 15, 2025
Observation date: Jun 30, 2012
Submitted by: RobSimpson
Region: Park County, Wyoming, United States
Verified by: J_Martineau
Verified date: Apr 15, 2025
Observation date: Aug 08, 2007
Submitted by: RobSimpson
Region: Wyoming, United States
Verified by: J_Martineau
Verified date: Mar 21, 2025
Observation date: Aug 27, 2011
Submitted by: rjboehnke
Region: Salt Lake County, Utah, United States
Verified by: James Steen
Verified date: Feb 12, 2025
Observation date: Aug 09, 2024
Submitted by: jrmbutterfly
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Dec 08, 2024
Observation date: Aug 09, 2024
Submitted by: jrmbutterfly
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Dec 08, 2024
Observation date: Aug 09, 2024
Submitted by: jrmbutterfly
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Dec 08, 2024
Observation date: Sep 01, 2024
Submitted by: jrmbutterfly
Region: Alberta, Canada
Verified by: Paul Prappas
Verified date: Dec 08, 2024
Observation date: Sep 14, 2024
Submitted by: ezeemonee
Region: El Paso County, Colorado, United States
Verified by: mikefisher
Verified date: Nov 09, 2024
Observation date: Aug 30, 2024
Submitted by: NikkiM
Region: Park County, Wyoming, United States
Verified by: J_Martineau
Verified date: Oct 21, 2024
Observation date: Aug 29, 2021
Submitted by: dvollmar
Region: San Miguel County, Colorado, United States
Verified by: mikefisher
Verified date: Oct 07, 2024
Observation date: Aug 27, 2021
Submitted by: dvollmar
Region: San Miguel County, Colorado, United States
Verified by: mikefisher
Verified date: Oct 07, 2024
Observation date: Sep 07, 2024
Submitted by: ezeemonee
Region: Summit County, Colorado, United States
Verified by: mikefisher
Verified date: Sep 25, 2024
Observation date: Sep 02, 2024
Submitted by: Cascade Colors
Region: Jackson County, Colorado, United States
Verified by: mikefisher
Verified date: Sep 24, 2024
Observation date: Jul 21, 2024
Submitted by: Robert Gorman
Region: Fremont County, Idaho, United States
Verified by: stevekohler
Verified date: Sep 20, 2024
Observation date: Jul 21, 2024
Submitted by: Robert Gorman
Region: Fremont County, Idaho, United States
Verified by: stevekohler
Verified date: Sep 20, 2024
Observation date: Sep 01, 2024
Submitted by: jrmbutterfly
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Sep 11, 2024
Observation date: Sep 01, 2024
Submitted by: jrmbutterfly
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Sep 11, 2024
Observation date: Sep 01, 2024
Submitted by: jrmbutterfly
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Sep 11, 2024
Observation date: Sep 01, 2024
Submitted by: jrmbutterfly
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Sep 11, 2024
Observation date: Aug 04, 2024
Submitted by: Cascade Colors
Region: Grand County, Colorado, United States
Verified by: mikefisher
Verified date: Sep 07, 2024
Observation date: Jul 31, 2024
Submitted by: Cascade Colors
Region: Jackson County, Colorado, United States
Verified by: mikefisher
Verified date: Sep 07, 2024
Observation date: Sep 02, 2024
Submitted by: NikkiM
Region: Carbon County, Montana, United States
Verified by: J_Martineau
Verified date: Sep 05, 2024
Observation date: Aug 06, 2019
Submitted by: Aat
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Sep 02, 2024
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