Actebia fennica
In 3 days ~30% in a week ~50%
Actebia fennica, the black army cutworm or Eversmann's rustic, is a moth of the family Noctuidae. The species was first described by August Michael Tauscher in 1806. It has a Holarctic distribution from Newfoundland through western Europe, Siberia, the Far East, Mongolia, northern China to Korea and Japan. In North America it is mainly found in the boreal region, south to New England, southern Montana and northern Oregon.
The wingspan is 39-42 mm and the typical length is ~23 mm. Adults are on wing from July to September depending on the location. There is one generation per year. The larvae feed on Elymus arenarius, Rumex species (including Rumex acetosella), Atriplex species, Minuartia pebloides, Lathyrus maritimus, Salix species and Vaccinium uliginosum. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Jasper National Park | 🇨🇦 Canada |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Edmonton | 🇨🇦 Canada |
With luck
About 10% of wildlife watchers report a Finnish Dart sighting in Jasper National Park on a given day, based on 17 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 33rd most-seen of the 88 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
May
In that month about 20% of wildlife watchers report a Finnish Dart in Jasper National Park on a given day, against under 5% in September to April, the lowest months.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Finnish Dart sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Only Jasper National Park, in our data
Jasper National Park is the only park on Wallace's Line with enough records to rate Finnish Dart sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Finnish Dart is recorded against all the insects logged in Jasper National Park (17 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.
