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 25 - 48 of 697 verified sightings
Observation date: Aug 10, 2024
Submitted by: NikkiM
Region: Carbon County, Montana, United States
Verified by: J_Martineau
Verified date: Aug 15, 2024
Observation date: Aug 11, 2024
Submitted by: Dogoszhi
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Aug 11, 2024
Observation date: Jul 30, 2024
Submitted by: Robert Gorman
Region: Wyoming, United States
Verified by: J_Martineau
Verified date: Aug 09, 2024
Observation date: Aug 05, 2024
Submitted by: Cactuswren1976
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Aug 07, 2024
Observation date: Jul 15, 2024
Submitted by: Nabrin
Region: Gunnison County, Colorado, United States
Verified by: mikefisher
Verified date: Jul 26, 2024
Observation date: Jun 19, 2024
Submitted by: Cascade Colors
Region: Grand County, Colorado, United States
Verified by: mikefisher
Verified date: Jul 04, 2024
Observation date: Aug 16, 2022
Submitted by: jrmbutterfly
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Jul 01, 2024
Observation date: Jul 18, 2023
Submitted by: stevecary
Region: Conejos County, Colorado, United States
Verified by: mikefisher
Verified date: Feb 19, 2024
Observation date: Jul 16, 2023
Submitted by: stevecary
Region: Rio Grande County, Colorado, United States
Verified by: mikefisher
Verified date: Jan 28, 2024
Observation date: Jul 14, 2023
Submitted by: stevecary
Region: Conejos County, Colorado, United States
Verified by: mikefisher
Verified date: Jan 05, 2024
Observation date: Sep 08, 2023
Submitted by: Christian.Nunes
Region: Boulder County, Colorado, United States
Verified by: mikefisher
Verified date: Dec 05, 2023
Observation date: Aug 26, 2023
Submitted by: NikkiM
Region: Carbon County, Montana, United States
Verified by: J_Martineau
Verified date: Nov 06, 2023
Observation date: Aug 26, 2023
Submitted by: NikkiM
Region: Carbon County, Montana, United States
Verified by: J_Martineau
Verified date: Nov 06, 2023
Observation date: Sep 02, 2023
Submitted by: NikkiM
Region: Carbon County, Montana, United States
Verified by: J_Martineau
Verified date: Oct 23, 2023
Observation date: Oct 08, 2023
Submitted by: rajanrao
Region: Alpine County, California, United States
Verified by: Ken Davenport
Verified date: Oct 10, 2023
Observation date: Oct 08, 2023
Submitted by: rajanrao
Region: Alpine County, California, United States
Verified by: Ken Davenport
Verified date: Oct 09, 2023
Observation date: Jun 17, 2017
Submitted by: HollyPayne
Region: Juab County, Utah, United States
Verified by: James Steen
Verified date: Sep 18, 2023
Observation date: Aug 30, 2007
Submitted by: Bob Crowley
Region: Uintah County, Utah, United States
Verified by: James Steen
Verified date: Sep 18, 2023
Observation date: Jul 30, 2017
Submitted by: dingoqueen
Region: Box Elder County, Utah, United States
Verified by: James Steen
Verified date: Sep 12, 2023
Observation date: Aug 06, 2017
Submitted by: dingoqueen
Region: Weber County, Utah, United States
Verified by: James Steen
Verified date: Sep 12, 2023
Observation date: Jul 04, 2020
Submitted by: Robb Hannawacker
Region: San Juan County, Utah, United States
Verified by: James Steen
Verified date: Sep 12, 2023
Observation date: Aug 30, 2023
Submitted by: abenator2000
Region: Pennington County, South Dakota, United States
Verified by: J_Martineau
Verified date: Sep 05, 2023
Observation date: Aug 15, 2023
Submitted by: hiker96
Region: Pierce County, Washington, United States
Verified by: davidwdroppers
Verified date: Aug 19, 2023
Observation date: Jul 28, 2021
Submitted by: jrmbutterfly
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Aug 18, 2023
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