Palaeosia bicosta
In 3 days ~20% in a week ~30%
Palaeosia is a monotypic genus of moths in the family Erebidae erected by George Hampson in 1900. Its only species, Palaeosia bicosta, the two-ribbed arctiid or two-ribbed footman, was first described by Francis Walker in 1854. It is found in south-eastern Australia.
The wingspan is about 30 mm. The larvae feed on lichen. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Blue Mountains National Park | 🇦🇺 Australia | |
| 2 | Great Otway National Park | 🇦🇺 Australia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Melbourne | 🇦🇺 Australia |
With luck
About 10% of wildlife watchers report a Two-Ribbed Footman sighting in Great Otway National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 253rd most-seen of the 418 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.
March–April and October–November
In those months about 10% of wildlife watchers report a Two-Ribbed Footman in Great Otway National Park on a given day, against under 5% in May–September and December–February, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Two-Ribbed Footman sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 2 parks where we can rate Two-Ribbed Footman sightings, Great Otway National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Blue Mountains National Park (Australia, about 10%).
Same family: Erebidae
The closest relatives of the Two-Ribbed Footman that you can see in Great Otway National Park (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Southern Moon Moth (about 20%), Heliotrope Moth (about 10%) and Black-And-White Tiger Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Two-Ribbed Footman is recorded against all the insects logged in Great Otway National Park (8 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.
