Ectobius pallidus
In 3 days ~20% in a week ~40%
Ectobius pallidus, the tawny cockroach, is a species of non-cosmopolitan cockroach in the family Ectobiidae. It occurs in southern England, Belgium, France, the Netherlands, Germany, Switzerland, Italy, Spain and Portugal; in North Africa: Algeria and Tunisia. It is now known to be introduced into North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 2 | Cévennes National Park | 🇫🇷 France | |
| 3 | Acadia National Park | 🇺🇸 United States | |
| 4 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Boston | 🇺🇸 United States | |
| 2 | New York City | 🇺🇸 United States | |
| 3 | Paris | 🇫🇷 France |
With luck
About 10% of wildlife watchers report a Tawny Cockroach sighting in Acadia National Park on a given day, based on 19 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 135th most-seen of the 405 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
March
In that month about 20% of wildlife watchers report a Tawny Cockroach in Acadia National Park on a given day, against under 5% in April and November–February, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Tawny Cockroach sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Among the best
Of the 4 parks where we can rate Tawny Cockroach sightings, Acadia National Park ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Sierra Nevada National Park (Spain, about 10%) and Cévennes National Park (France, about 10%).
GBIF citizen-science records
It is estimated from how often the Tawny Cockroach is recorded against all the insects logged in Acadia National Park (19 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.
