Milionia basalis
In 3 days ~20% in a week ~40%
Milionia basalis is a moth of the family Geometridae first described by Francis Walker in 1854. It is found in Japan, the north-eastern parts of the Himalayas, Myanmar and Sundaland. The wingspan is 50–56 mm. The larvae feed on Dacrydium and Podocarpus species. The adult is day flying. It feed on the nectar flowers of Leptospermum flavescens in the mountains of Peninsular Malaysia. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Yai National Park | 🇹🇭 Thailand |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Milionia basalis sighting in Tuen Mun on a given day, based on 14 verified sightings from GBIF citizen-science data. It is the 260th most-seen of the 557 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.
June
In that month about 20% of wildlife watchers report a Milionia basalis in Tuen Mun on a given day, against under 5% in March and July–January, the lowest months. That is one of Tuen Mun's wettest months, with about 290 mm of rain against 20 mm in December.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Milionia basalis sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
5th of 6
Of the 6 cities where we can rate Milionia basalis sightings, Tuen Mun ranks 5th at about 10%. The best odds are in Taipei (Taiwan, about 20%), Zhuhai [Macau] (China, about 20%) and Hong Kong (China, about 10%).
Same family: Geometridae
The closest relatives of the Milionia basalis that you can see in Tuen Mun (family Geometridae, Geometer Moths) are False Tiger Moth (about 20%), Black Looper (about 10%) and Problepsis vulgaris (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Milionia basalis is recorded against all the insects logged in Tuen Mun (14 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.
