Dysallacta negatalis
In 3 days ~10% in a week ~20%
Glyphodes negatalis, the karanj defoliator, is a moth of the family Crambidae. The species was first described by Francis Walker in 1859. It has a wide range in the tropics, including South Africa, The Gambia, Mali, India, Sri Lanka, Hong Kong, Japan, and eastern Australia (including New South Wales and Queensland).
The wingspan is about 20 mm. The larvae feed on Dillenia indica, Ficus microcarpa and Ficus religiosa (Moraceae). In India, they had been found also as a main defoliator of Pongamia pinnata (karanj), and in Japan, the larvae had been found on Ficus superba var. japonica. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Xiuying District | 🇨🇳 China | |
| 2 | Tuen Mun | 🇨🇳 China | |
| 3 | Hong Kong | 🇨🇳 China | |
| 4 | Guangzhou | 🇨🇳 China | |
| 5 | Brisbane | 🇦🇺 Australia |
Rare
Under 5% of wildlife watchers report a Dysallacta negatalis 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.
August
In that month about 10% of wildlife watchers report a Dysallacta negatalis in Hong Kong on a given day, against under 5% in September to July, the lowest months. That is one of Hong Kong's wettest months, with about 220 mm of rain against 25 mm in December.
3rd of 5
Of the 5 cities where we can rate Dysallacta negatalis sightings, Hong Kong ranks 3rd at under 5%. The best odds are in Xiuying District (China, about 20%) and Tuen Mun (China, about 10%).
Same family: Crambidae
The closest relatives of the Dysallacta negatalis that you can see in Hong Kong (family Crambidae, Crambid Snout Moths) are Hawaiian Beet Webworm Moth (about 10%), Heortia vitessoides (about 10%) and Camptomastix hisbonalis (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dysallacta negatalis 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.
