Aridaeus thoracicus
In 3 days ~20% in a week ~30%
Aridaeus thoracicus, the tiger longicorn, is a common beetle found in Australia. It has also been introduced to New Zealand. An attractively marked insect with orange and black patterns, the femur of each leg is swollen in the middle. Orange hairs may be noticed on the legs and thorax. It was described by Anglo-Irish naturalist Edward Donovan in 1805.
In the warmer months, adults are seen on flowering plants, feeding on the pollen and nectar, particularly those in the myrtle family. Larvae feed on dead wood of a variety of trees. Hosts include Avicennia marina and species in the genus Eucalyptus. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Blue Mountains National Park | 🇦🇺 Australia |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Tiger Longhorn sighting in Sydney on a given day, based on 76 verified sightings from GBIF citizen-science data. It is the 128th most-seen of the 742 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.
November to January
In those months about 10% of wildlife watchers report a Tiger Longhorn in Sydney on a given day, against under 5% in February to October, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Tiger Longhorn sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 cities where we can rate Tiger Longhorn sightings, Sydney has the highest daily chance: about 10%. Next come Brisbane (Australia, about 10%).
GBIF citizen-science records
It is estimated from how often the Tiger Longhorn is recorded against all the insects logged in Sydney (76 verified sightings), 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.
