Anoplognathus porosus
In 3 days ~20% in a week ~40%
Anoplognathus porosus, commonly known as the washerwoman, is a species of scarab beetle within the genus Anoplognathus. Anoplognathus porosus is commonly known as the "washerwoman". The scarab genus Anoplognathus to which the washerwoman belongs is commonly known as the Christmas beetles. The species epithet, porosus, meaning "with holes", refers to the coloured indentations on the beetle's wing-cases.
The species has several taxonomic synonyms. Anoplognathus porosus can vary in appearance and the most inconsistent of the christmas beetles. Accordingly, it can be misindentified as the related species A. boisduvali, A. pallidicollis, and A. rugosus. A. porosus is generally pale reddish brown with both the head and the elytra tinted with a greenish-pink lustre or solidly darker brown. On the pronotum and the scutellum, the tinting is more visible The abdomen itself is a rich ruddy-brown with green shine. The legs are also light brown with a green lustre; the tarsi, however – the final segment of each leg – are black, yet still with greenish lustre. The final segment of the body, the pygidium, is pink or green in colour. It short white hairs on both the... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Royal National Park | 🇦🇺 Australia | |
| 2 | Lamington National Park | 🇦🇺 Australia | |
| 3 | Springbrook National Park | 🇦🇺 Australia | |
| 4 | Blue Mountains National Park | 🇦🇺 Australia |
With luck
About 10% of wildlife watchers report a Washerwoman sighting in Blue Mountains National Park on a given day, based on 20 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 213th most-seen of the 789 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.
December
In that month about 20% of wildlife watchers report a Washerwoman in Blue Mountains National Park on a given day, against under 5% in March to September, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Washerwoman 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.
4th of 4
Of the 4 parks where we can rate Washerwoman sightings, Blue Mountains National Park ranks 4th at about 10%. The best odds are in Royal National Park (Australia, about 20%), Lamington National Park (Australia, about 10%) and Springbrook National Park (Australia, about 10%).
Same genus: Anoplognathus
The closest relatives of the Washerwoman that you can see in Blue Mountains National Park (genus Anoplognathus, Christmas Beetles) are Anoplognathus viriditarsis (about 10%), Emerald Tip Beetle (about 10%) and Brown-Winged Christmas Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Washerwoman is recorded against all the insects logged in Blue Mountains National Park (20 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.
