Attributes of Boloria alaskensis
Mountain Fritillary
Boloria alaskensis (Holland, 1900)
Family: Nymphalidae
Subfamily: Heliconiinae
Identification: Outer margin of hindwing arched. Upperside of male orange with dark wing bases and delicate markings; female cream with heavy dark pattern. Underside of hindwing tan with faint markings.
Wing Span: 1 3/8 - 1 7/8 inches (3.5 - 4.8 cm).
Life History: Males patrol close to the ground during the day. Females lay eggs singly near host plants. Two years are needed to complete development from egg to adult; caterpillars hibernate their first and second winters.
Flight: One brood from late June-early August.
Caterpillar Hosts: False bistort (Polygonum bistortoides) and alpine smartweed (P. viviparum).
Adult Food: Flower nectar.
Habitat: Moist tundra and high mountain meadows.
Range: Holarctic. Alaska and Northwest Territory, western Yukon, northwestern British Columbia. Isolated populations in Canadian Rockies and Wind River Mountains of Wyoming.
Conservation: Not usually of concern but subspecies halli in the Wind River Mountains of Wyoming should be periodically monitored.
NCGR: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
Management Needs: None reported.
Taxonomy Notes:
The map below displays all verified sighting records in the BAMONA database for this species. Each record is indicated with a yellow dot. The orange dots on the map provide access to information about the 400 most recently verified sightings of this species. In some instances, there are several records at the same location. Use the table view to access these records.
Instructions: Click on the map and move your mouse to pan.
Zoom by using the plus [+] and minus [-] on the left side of the map.
To change which map layers are displayed, click on the plus sign [+] on the right side of the map.
The fifty most recently verified sightings are below. See more recently verified sightings of all species.
| Observation Date | Submitter | Region |
Verified Date |
||
|---|---|---|---|---|---|
 |
July 28, 2011 | SCM_Alaska | Kenai Peninsula Borough, Alaska, United States | June 13, 2012 | Details |
| June 28, 1995 | legacy.reporter (F/P) | Northwest Arctic Borough, Alaska, United States | January 23, 2008 | Details | |
| July 07, 1996 | legacy.reporter (KWP) | Denali Borough, Alaska, United States | January 23, 2008 | Details | |
| June 24, 1999 | legacy.reporter (JLH) | North Slope Borough, Alaska, United States | January 23, 2008 | Details | |
| June 22, 1997 | legacy.reporter (F/P) | Denali Borough, Alaska, United States | January 23, 2008 | Details | |
| January 01, 1950 | legacy.reporter | Alaska, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Sublette County, Wyoming, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Fremont County, Wyoming, United States | December 31, 2004 | Details |
