Australothis rubrescens
In 3 days ~20% in a week ~40%
Australothis rubrescens, the Indian weed caterpillar, is a moth of the family Noctuidae. It is found all over Australia (including Tasmania) and in Papua New Guinea. Larvae have been recorded on Sigesbeckia orientalis, Ixiolaena brevicompta, Podolepis longipedata, Hibisucs, Nicotiana tabacum, Solanum dioicum and Stylidium productum. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Blue Mountains National Park | 🇦🇺 Australia |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report an Indian Weed Caterpillar sighting in Blue Mountains National Park on a given day, based on 20 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 225th most-seen of the 789 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.
September to April
In those months about 10% of wildlife watchers report an Indian Weed Caterpillar in Blue Mountains National Park on a given day, against under 5% in May to August, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Indian Weed Caterpillar sightings with a recorded time, and nearly all 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 Indian Weed Caterpillar sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Noctuidae
The closest relatives of the Indian Weed Caterpillar that you can see in Blue Mountains National Park (family Noctuidae, Cutworm Moths and Allies) are Brown Cutworm (about 20%), Green-Blotched Moth (about 20%) and Bogong Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Indian Weed Caterpillar is recorded against all the insects logged in Blue Mountains National Park (20 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.
