Clossiana improba
In 3 days ~60% in a week ~80%
Boloria improba, the dingy fritillary, is a butterfly of the family Nymphalidae. In Europe it is only found in small parts of Scandinavia, more specifically the border region between Norway, Sweden and Finland. It is found in alpine or tundra habitats.
The larvae probably feed on Polygonum viviparum in Europe. In North America the food plants are Salix arctica and Salix reticulata nivalis. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Wrangell-St. Elias National Park | 🇺🇸 United States |
More parks will be added in future updates.
Possible
About 20% of wildlife watchers report a Dingy Fritillary sighting in Wrangell-St. Elias National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 22nd most-seen of the 27 insects we can rate there. Over three days the chance rises to about 60%, and over a week to about 80%, if each day is a fresh chance.
July and August
In those months about 30% of wildlife watchers report a Dingy Fritillary in Wrangell-St. Elias National Park on a given day, against under 5% in May–June and September, the lowest months. Those are among Wrangell-St. Elias National Park's wettest months, with about 120 mm of rain a month against 25 mm in April. October to March have too few records to rate.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Dingy Fritillary sightings with a recorded time, and nearly all 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 Dingy Fritillary sightings: about 20% of wildlife watchers there report one on a given day.
Same family: Nymphalidae
The closest relatives of the Dingy Fritillary that you can see in Wrangell-St. Elias National Park (family Nymphalidae, Brush-footed Butterflies) are Alaskan Fritillary (about 40%), White-Veined Arctic (about 40%) and Mormon Fritillary (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dingy Fritillary is recorded against all the insects logged in Wrangell-St. Elias National Park (8 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.
