Ellipsidion australe
In 3 days ~10% in a week ~30%
Ellipsidion australe, or the eastern ellipsidion, or bush cockroach, is a harmless species of cockroach native to Australia and found in New South Wales, the Northern Territory, Queensland, and Victoria. The species was first described in 1863 as Thyrsocera australis by Henri de Saussure. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Blue Mountains National Park | 🇦🇺 Australia |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report an Austral Ellipsidion sighting in Blue Mountains National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 554th most-seen of the 789 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
February, October and December
In those months about 10% of wildlife watchers report an Austral Ellipsidion in Blue Mountains National Park on a given day, against under 5% in January, March–September and November, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Austral Ellipsidion 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 Blue Mountains National Park, in our data
Blue Mountains National Park is the only park on Wallace's Line with enough records to rate Austral Ellipsidion sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Austral Ellipsidion is recorded against all the insects logged in Blue Mountains National Park (7 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.
