Milionia basalis
In 3 days ~50% in a week ~80%
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.
Possible
About 20% of wildlife watchers report a Milionia basalis sighting in Taipei on a given day, based on 457 verified sightings from GBIF citizen-science data. It is the 11th most-seen of the 765 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
May
In that month about 40% of wildlife watchers report a Milionia basalis in Taipei on a given day, against under 5% in August to October, the lowest months. That is one of Taipei's wettest months, with about 230 mm of rain against 90 mm in February.
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.
Yes
Of the 6 cities where we can rate Milionia basalis sightings, Taipei has the highest daily chance: about 20%. Next come 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 Taipei (family Geometridae, Geometer Moths) are Eumelea ludovicata (about 10%), Asian Cross-Lined Wave Moth (about 10%) and Agathia laetata (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 Taipei (457 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.
