Gastrophora henricaria
In 3 days ~30% in a week ~60%
Gastrophora is a monotypic moth genus in the family Geometridae. Its only species, Gastrophora henricaria, the fallen bark looper or beautiful leaf moth, is found in the south-east corner of Australia. Both the genus and species were first described by Achille Guenée in 1857.
The wingspan is about 50 mm. The larvae feed on Eucalyptus species and Lophostemon confertus. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kosciuszko National Park | 🇦🇺 Australia | |
| 2 | Blue Mountains National Park | 🇦🇺 Australia | |
| 3 | Lamington National Park | 🇦🇺 Australia | |
| 4 | Great Otway National Park | 🇦🇺 Australia | |
| 5 | Springbrook National Park | 🇦🇺 Australia | |
| 6 | Royal National Park | 🇦🇺 Australia |
With luck
About 10% of wildlife watchers report a Fallen Bark Looper sighting in Blue Mountains National Park on a given day, based on 40 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 79th most-seen of the 789 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.
November to January
In those months about 20% of wildlife watchers report a Fallen Bark Looper in Blue Mountains National Park on a given day, against under 5% in March and May–September, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Fallen Bark Looper 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.
2nd of 6
Of the 6 parks where we can rate Fallen Bark Looper sightings, Blue Mountains National Park ranks 2nd at about 10%. The best odds are in Kosciuszko National Park (Australia, about 20%).
Same family: Geometridae
The closest relatives of the Fallen Bark Looper that you can see in Blue Mountains National Park (family Geometridae, Geometer Moths) are Apple Looper (about 20%), Black Geometrid (about 10%) and Plantain Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Fallen Bark Looper is recorded against all the insects logged in Blue Mountains National Park (40 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.
