Ryssonotus nebulosus
In 3 days ~10% in a week ~30%
Ryssonotus nebulosus is a beetle of the family Lucanidae, and the sole member of the genus Ryssonotus (often misspelled as "Rhyssonotus"). It is found in Queensland and New South Wales, Australia, as well as introduced into New Zealand. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Royal National Park | 🇦🇺 Australia | |
| 2 | Blue Mountains National Park | 🇦🇺 Australia |
With luck
About 10% of wildlife watchers report a Brown Stag Beetle sighting in Blue Mountains National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 456th most-seen of the 789 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
November to January
In those months about 10% of wildlife watchers report a Brown Stag Beetle in Blue Mountains National Park on a given day, against under 5% in February to October, the lowest months.
Between 6 and 9 pm
Across all the parks we cover, that three-hour window holds the most Brown Stag Beetle sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Among the best
Of the 2 parks where we can rate Brown Stag Beetle sightings, Blue Mountains National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Royal National Park (Australia, about 10%).
GBIF citizen-science records
It is estimated from how often the Brown Stag Beetle is recorded against all the insects logged in Blue Mountains National Park (9 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.
