Laxta granicollis
In 3 days ~30% in a week ~60%
Laxta granicollis, the bark cockroach, is a species of Blaberidae that occurs in Australia. The female of this species lacks wings while the male is winged. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Grampians National Park | 🇦🇺 Australia | |
| 2 | Great Otway National Park | 🇦🇺 Australia | |
| 3 | Royal National Park | 🇦🇺 Australia | |
| 4 | Blue Mountains National Park | 🇦🇺 Australia |
No species of the same family or order lives in Grampians National Park, so these are its closest relatives here: other insects.
With luck
About 10% of wildlife watchers report a Bark Cockroach sighting in Grampians National Park on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 71st most-seen of the 148 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.
July
In that month about 30% of wildlife watchers report a Bark Cockroach in Grampians National Park on a given day, against under 5% in January–March, May and September–October, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Bark Cockroach sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Yes
Of the 4 parks where we can rate Bark Cockroach sightings, Grampians National Park has the highest daily chance: about 10%. Next come Great Otway National Park (Australia, about 10%) and Royal National Park (Australia, about 10%).
GBIF citizen-science records
It is estimated from how often the Bark Cockroach is recorded against all the insects logged in Grampians National Park (10 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.
