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 646 verified sightings
Observation date: Jul 17, 2021
Submitted by: NikkiM
Region: Carbon County, Montana, United States
Verified by: stevekohler
Verified date: Apr 24, 2023
Observation date: Jul 19, 2022
Submitted by: Pheasantboy77
Region: Gallatin County, Montana, United States
Verified by: stevekohler
Verified date: Apr 24, 2023
Observation date: Aug 16, 2022
Submitted by: jrmbutterfly
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Apr 15, 2023
Observation date: Aug 16, 2022
Submitted by: jrmbutterfly
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Apr 15, 2023
Observation date: Aug 12, 2022
Submitted by: NikkiM
Region: Park County, Wyoming, United States
Verified by: J_Martineau
Verified date: Mar 14, 2023
Observation date: Jun 10, 2014
Submitted by: Cheri Phillips
Region: Boulder County, Colorado, United States
Verified by: mikefisher
Verified date: Feb 26, 2023
Observation date: Aug 17, 2020
Submitted by: jsaunders260
Region: Matanuska-Susitna, Alaska, United States
Verified by: Paul Prappas
Verified date: Feb 11, 2023
Observation date: Aug 14, 2020
Submitted by: frogbandit
Region: Anchorage, Alaska, United States
Verified by: Paul Prappas
Verified date: Feb 08, 2023
Observation date: Jul 27, 2022
Submitted by: mashoop58
Region: Rio Arriba County, New Mexico, United States
Verified by: stevecary
Verified date: Feb 03, 2023
Observation date: Aug 02, 2021
Submitted by: NikkiM
Region: Park County, Wyoming, United States
Verified by: J_Martineau
Verified date: Feb 01, 2023
Observation date: Aug 01, 2021
Submitted by: NikkiM
Region: Park County, Wyoming, United States
Verified by: J_Martineau
Verified date: Feb 01, 2023
Observation date: Sep 02, 2021
Submitted by: NikkiM
Region: Park County, Wyoming, United States
Verified by: J_Martineau
Verified date: Feb 01, 2023
Observation date: Sep 17, 2022
Submitted by: NikkiM
Region: Carbon County, Montana, United States
Verified by: J_Martineau
Verified date: Jan 03, 2023
Observation date: Sep 17, 2022
Submitted by: NikkiM
Region: Carbon County, Montana, United States
Verified by: J_Martineau
Verified date: Jan 02, 2023
Observation date: Sep 17, 2022
Submitted by: NikkiM
Region: Carbon County, Montana, United States
Verified by: J_Martineau
Verified date: Jan 02, 2023
Observation date: Aug 10, 2022
Submitted by: J_Martineau
Region:
Verified by: J_Martineau
Verified date: Dec 16, 2022
Observation date: Sep 05, 2022
Submitted by: NikkiM
Region: Carbon County, Montana, United States
Verified by: J_Martineau
Verified date: Nov 28, 2022
Observation date: Aug 04, 2021
Submitted by: NikkiM
Region: Park County, Wyoming, United States
Verified by: Ken Davenport
Verified date: Oct 20, 2022
Observation date: Aug 20, 2022
Submitted by: NikkiM
Region: Park County, Wyoming, United States
Verified by: Ken Davenport
Verified date: Oct 20, 2022
Observation date: Sep 08, 2022
Submitted by: Cascade Colors
Region: Boulder County, Colorado, United States
Verified by: mikefisher
Verified date: Oct 15, 2022
Observation date: Sep 12, 2022
Submitted by: mfloyd19
Region: Tulare County, California, United States
Verified by: Ken Davenport
Verified date: Oct 10, 2022
Observation date: Aug 29, 2022
Submitted by: DebraRade
Region: Lake County, Colorado, United States
Verified by: mikefisher
Verified date: Oct 02, 2022
Observation date: Sep 06, 2017
Submitted by: Liz Osborn
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Sep 24, 2022
Observation date: Sep 08, 2017
Submitted by: Liz Osborn
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Sep 24, 2022
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