Boloria alaskensis
In 3 days ~80% in a week >90%
Boloria alaskensis, the mountain fritillary or Alaskan fritillary, is a species of fritillary butterfly in the family Nymphalidae. It was described by William Jacob Holland in 1900 and is found in North America and North European Russia. The MONA or Hodges number for Boloria alaskensis is 4462. The larvae feed on false bistort (Polygonum bistortoides) and alpine smartweed (P. viviparum).
It is very similar to Boloria pales. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Wrangell-St. Elias National Park | 🇺🇸 United States |
More parks will be added in future updates.
Likely
About 40% of wildlife watchers report an Alaskan Fritillary sighting in Wrangell-St. Elias National Park on a given day, based on 29 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 2nd most-seen of the 27 insects we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
July
In that month about 60% of wildlife watchers report an Alaskan Fritillary in Wrangell-St. Elias National Park on a given day, against under 5% in June, the lowest month. October to March have too few records to rate.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Alaskan Fritillary sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Wrangell-St. Elias National Park, in our data
Wrangell-St. Elias National Park is the only park on Wallace's Line with enough records to rate Alaskan Fritillary sightings: about 40% of wildlife watchers there report one on a given day.
Same genus: Boloria
The closest relatives of the Alaskan Fritillary that you can see in Wrangell-St. Elias National Park (genus Boloria, Lesser Fritillaries) are Freija Fritillary (about 30%) and Arctic Fritillary (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Alaskan Fritillary is recorded against all the insects logged in Wrangell-St. Elias National Park (29 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
