Brunia replana
In 3 days ~30% in a week ~50%
Brunia replana, the lichen-eating caterpillar or lichen moth, is a species of moth of the subfamily Arctiinae. It is found in Australia (including New South Wales, Queensland and Tasmania) and the caterpillar feeds nocturnally on lichen.
The wingspan is about 30 mm. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Blue Mountains National Park | 🇦🇺 Australia | |
| 2 | Springbrook National Park | 🇦🇺 Australia |
With luck
About 10% of wildlife watchers report a Lichen-Eating Caterpillar sighting in Blue Mountains National Park on a given day, based on 32 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 108th 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 50%, if each day is a fresh chance.
April
In that month about 20% of wildlife watchers report a Lichen-Eating Caterpillar in Blue Mountains National Park on a given day, against under 5% in July to September, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Lichen-Eating Caterpillar sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 parks where we can rate Lichen-Eating Caterpillar sightings, Blue Mountains National Park has the highest daily chance: about 10%. Next come Springbrook National Park (Australia, about 10%).
Same family: Erebidae
The closest relatives of the Lichen-Eating Caterpillar that you can see in Blue Mountains National Park (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Light Ermine Moth (about 10%), Bird Dropping Lichen Moth (about 10%) and Tigrioides alterna (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Lichen-Eating Caterpillar is recorded against all the insects logged in Blue Mountains National Park (32 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.
