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:

Images of Boloria alaskensis

There are no photographs of this species in the database. Want to share one? Learn how to share your photographs.

The map below displays all BAMONA data for this species and has three different data layers:
1. All records (yellow dots)   2. Recently verified records (orange dots)*   3. US county records (purple)

There are also three base layers: 1. Satellite    2. Normal   3. Hybrid

How to use the map:
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 and turn on/off the data layers and base layers.

*The orange dots on the map provide access to information about the 400 most recently verified sightings of this species. Sometimes, there are several records at the same location. Use the table view to access these records.

By default, the fifty most recently verified sightings are below. Sort by Observation Date to see the most recent sightings, or filter the sightings by region to get a regional list.

See more recently verified sightings of all species.

You don't have Javascript enabled. Hover for more information! But don't worry: you can still use this web site! You have two options:
  • enable Javascript in your browser and then refresh this page, for a much enhanced experience.
  • click the Update button every time you want to update the selection.
Observation Date Submitter Region Verified Datesort icon
June 29, 2013 MisakoHill Denali Borough, Alaska, United States October 31, 2013 Details
June 23, 2013 corey.husic Denali Borough, Alaska, United States July 20, 2013 Details
June 23, 2013 corey.husic Denali Borough, Alaska, United States July 20, 2013 Details
June 23, 2013 corey.husic Denali Borough, Alaska, United States July 20, 2013 Details
June 23, 2013 corey.husic Denali Borough, Alaska, United States July 20, 2013 Details
June 23, 2013 corey.husic Denali Borough, Alaska, United States July 20, 2013 Details
June 23, 2013 corey.husic Denali Borough, Alaska, United States July 20, 2013 Details
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