Ectobius lapponicus
In 3 days ~30% in a week ~60%
Ectobius lapponicus, also known as the dusky cockroach, is a species of cockroach found in Europe, northern Asia (excluding China), the northeastern United States, and southeastern Canada. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cape Breton Highlands National Park | 🇨🇦 Canada | |
| 2 | Acadia National Park | 🇺🇸 United States | |
| 3 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 4 | Wadden Sea National Park | 🇩🇪 Germany |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Warsaw | 🇵🇱 Poland | |
| 2 | Helsinki | 🇫🇮 Finland | |
| 3 | Stockholm | 🇸🇪 Sweden | |
| 4 | Toronto | 🇨🇦 Canada | |
| 5 | Hamburg | 🇩🇪 Germany | |
| 6 | Berlin | 🇩🇪 Germany | |
| 7 | Nizhny Novgorod | 🇷🇺 Russia | |
| 8 | Munich | 🇩🇪 Germany | |
| 9 | Boston | 🇺🇸 United States | |
| 10 | Copenhagen | 🇩🇰 Denmark |
With luck
About 10% of wildlife watchers report a Dusky Cockroach sighting in Acadia National Park on a given day, based on 44 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 58th most-seen of the 405 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
June and July
In those months about 20% of wildlife watchers report a Dusky Cockroach in Acadia National Park on a given day, against under 5% in September to April, the lowest months.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Dusky Cockroach sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 4 parks where we can rate Dusky Cockroach sightings, Acadia National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Cape Breton Highlands National Park (Canada, about 10%).
GBIF citizen-science records
It is estimated from how often the Dusky Cockroach is recorded against all the insects logged in Acadia National Park (44 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.
