Henosepilachna vigintioctopunctata
In 3 days ~30% in a week ~60%
Henosepilachna vigintioctopunctata is a species of beetle in the family Coccinellidae. It is commonly known as the 28-spotted potato ladybird or the Hadda beetle. It feeds on the foliage of potatoes and other solanaceous crops. It was previously called Epilachna vigintioctopunctata and is a cryptic species complex. It is very often confused with a closely related species, Henosepilachna vigintioctomaculata, which occurs in Russia, China, Japan, and Korea, and is given the same "common name".
Temperature and humidity strongly influence the seasonal abundance of this species; the population increases with increased minimum temperature, and higher relative humidity. However, this species has two natural enemies, Tetrastichus sp. and Pediobius foveolatus, that suppress the beetle population by parasitizing their larval and pupal stages.
This species is native to southeastern Asia, primarily India, but has been accidentally introduced to other parts of the world, including Australia and New Zealand. It has also been recorded from Brazil and Argentina, beginning in 1996.
This species causes damage... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Lamington National Park | 🇦🇺 Australia | |
| 2 | Springbrook National Park | 🇦🇺 Australia | |
| 3 | Royal National Park | 🇦🇺 Australia | |
| 4 | Blue Mountains National Park | 🇦🇺 Australia | |
| 5 | Tijuca National Park | 🇧🇷 Brazil |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Auckland | 🇳🇿 New Zealand | |
| 2 | Tasikmalaya | 🇮🇩 Indonesia | |
| 3 | Brisbane | 🇦🇺 Australia | |
| 4 | Yogyakarta | 🇮🇩 Indonesia | |
| 5 | Buenos Aires | 🇦🇷 Argentina | |
| 6 | Bandung | 🇮🇩 Indonesia | |
| 7 | Nagoya | 🇯🇵 Japan | |
| 8 | Sydney | 🇦🇺 Australia | |
| 9 | Prayagraj | 🇮🇳 India | |
| 10 | Maceió | 🇧🇷 Brazil |
With luck
About 10% of wildlife watchers report a Hadda Beetle sighting in Sydney on a given day, based on 305 verified sightings from GBIF citizen-science data. It is the 43rd most-seen of the 742 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
February
In that month about 20% of wildlife watchers report a Hadda Beetle in Sydney on a given day, against under 5% in June to August, the lowest months. That is one of Sydney's wettest months, with about 130 mm of rain against 45 mm in September.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Hadda Beetle sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
8th of 24
Of the 24 cities where we can rate Hadda Beetle sightings, Sydney ranks 8th at about 10%. The best odds are in Auckland (New Zealand, about 20%), Tasikmalaya (Indonesia, about 20%) and Brisbane (Australia, about 20%).
Same family: Coccinellidae
The closest relatives of the Hadda Beetle that you can see in Sydney (family Coccinellidae, Lady Beetles) are Variable Ladybird Beetle (about 20%), Fungus-Eating Ladybird (about 20%) and Large Spotted Ladybird (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Hadda Beetle is recorded against all the insects logged in Sydney (305 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.
