Oenosandra boisduvalii
In 3 days ~30% in a week ~50%
Oenosandra is a monotypic moth genus in the family Oenosandridae. Its only species, Oenosandra boisduvalii, or Boisduval's autumn moth, is found in the southern half of Australia, including Tasmania. Both the genus and species were first described by Edward Newman in 1856.
The wingspan is about 50 mm. The larvae feed on Eucalyptus species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kosciuszko National Park | 🇦🇺 Australia | |
| 2 | Great Otway National Park | 🇦🇺 Australia | |
| 3 | Grampians National Park | 🇦🇺 Australia |
With luck
About 10% of wildlife watchers report a Boisduval's Autumn Moth sighting in Great Otway National Park on a given day, based on 29 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 64th most-seen of the 418 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.
March
In that month about 30% of wildlife watchers report a Boisduval's Autumn Moth in Great Otway National Park on a given day, against under 5% in May–September and November–February, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Boisduval's Autumn Moth sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is seen both by day and at night.
Among the best
Of the 3 parks where we can rate Boisduval's Autumn Moth sightings, Great Otway National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Kosciuszko National Park (Australia, about 10%).
GBIF citizen-science records
It is estimated from how often the Boisduval's Autumn Moth is recorded against all the insects logged in Great Otway National Park (29 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.
