Oenosandra boisduvalii
In 3 days ~20% in a week ~40%
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 Grampians National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 122nd most-seen of the 148 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.
April
In that month about 30% of wildlife watchers report a Boisduval's Autumn Moth in Grampians National Park on a given day, against under 5% in May to March, 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, Grampians National Park ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Kosciuszko National Park (Australia, about 10%) and Great Otway National Park (Australia, about 10%).
Same order: Lepidoptera
The closest relatives of the Boisduval's Autumn Moth that you can see in Grampians National Park (order Lepidoptera, Butterflies and Moths) are Common Brown (about 40%), Australian Painted Lady (about 40%) and Caper White (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Boisduval's Autumn Moth is recorded against all the insects logged in Grampians National Park (5 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.
