Bark Cockroach

Bark Cockroach

Laxta granicollis

Daily sighting probability ~10% · With luck
at Melbourne

In 3 days ~20% in a week ~30%

106 Verified sightings at Melbourne
31 In all 4 parks From 2019 to 2026
August Best month
☀️🌙 Day & Night When it's spotted

About the Bark Cockroach

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 →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Grampians National Park 🇦🇺 Australia
~10%
2 Great Otway National Park 🇦🇺 Australia
~10%
3 Royal National Park 🇦🇺 Australia
~10%
4 Blue Mountains National Park 🇦🇺 Australia
<5%

Cities Where Found

# City Country Daily sighting probability
1 Melbourne 🇦🇺 Australia
~10%
2 Sydney 🇦🇺 Australia
<5%

Before you go

What are the chances of seeing a Bark Cockroach in Melbourne?

With luck

About 10% of wildlife watchers report a Bark Cockroach sighting in Melbourne on a given day, based on 106 verified sightings from GBIF citizen-science data. It is the 133rd most-seen of the 875 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.

When is the best time to see a Bark Cockroach in Melbourne?

March–June and August–October

In those months about 10% of wildlife watchers report a Bark Cockroach in Melbourne on a given day, against under 5% in July and November–February, the lowest months.

What time of day is best to see a Bark Cockroach?

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.

Is Melbourne the best place to see a Bark Cockroach?

Yes

Of the 2 cities where we can rate Bark Cockroach sightings, Melbourne has the highest daily chance: about 10%. Next come Sydney (Australia, under 5%).

Where does the Bark Cockroach sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Bark Cockroach is recorded against all the insects logged in Melbourne (106 verified sightings), 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.

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