Trachymela sloanei
In 3 days ~10% in a week ~20%
Trachymela sloanei, known generally as the Australian tortoise beetle or small eucalyptus tortoise beetle, is a species of leaf beetle in the family Chrysomelidae. The species is native to Australia, where it lives on Eucalyptus trees. It is an invasive pest in California, and was recently established in Shenzhen (China), Chile, Spain, Portugal and Greece. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Channel Islands National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Toluca | 🇲🇽 México | |
| 2 | Mexico City | 🇲🇽 México | |
| 3 | Madrid | 🇪🇸 Spain | |
| 4 | San Francisco | 🇺🇸 United States | |
| 5 | Auckland | 🇳🇿 New Zealand | |
| 6 | Los Angeles | 🇺🇸 United States | |
| 7 | Hong Kong | 🇨🇳 China | |
| 8 | Lisbon | 🇵🇹 Portugal | |
| 9 | Sacramento | 🇺🇸 United States | |
| 10 | San Diego | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report an Australian Tortoise Beetle sighting in Hong Kong on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 680th most-seen of the 1125 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
March
In that month about 10% of wildlife watchers report an Australian Tortoise Beetle in Hong Kong on a given day, against under 5% in April to February, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Australian Tortoise Beetle sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
7th of 10
Of the 10 cities where we can rate Australian Tortoise Beetle sightings, Hong Kong ranks 7th at under 5%. The best odds are in Toluca (México, about 10%), Mexico City (México, about 10%) and Madrid (Spain, about 10%).
Same family: Chrysomelidae
The closest relatives of the Australian Tortoise Beetle that you can see in Hong Kong (family Chrysomelidae, Leaf Beetles) are Podontia lutea (about 10%), Furcated Tortoise Beetle (about 10%) and Abirus fortuneii (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Australian Tortoise Beetle is recorded against all the insects logged in Hong Kong (11 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.
