Thyas coronata
In 3 days ~30% in a week ~50%
Thyas coronata is a species of moth of the family Erebidae first described by Johan Christian Fabricius in 1775. It is found from the Indo-Australian tropics of southern China, Taiwan, Japan, Nepal, India, Sri Lanka to Micronesia and the Society Islands. 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 Yellow Underwing sighting in Kolkata on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 101st most-seen of the 213 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
June to August
In those months about 20% of wildlife watchers report a Yellow Underwing in Kolkata on a given day, against under 5% in October and December–May, the lowest months. Those are among Kolkata's wettest months, with about 290 mm of rain a month against 10 mm in December.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Yellow Underwing sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 12 cities where we can rate Yellow Underwing sightings, Kolkata ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Thrissur (India, about 10%) and Kochi (India, about 10%).
Same family: Erebidae
The closest relatives of the Yellow Underwing that you can see in Kolkata (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Seven-Spotted Handmaiden Moth (about 30%), Tropical Tiger Moth (about 20%) and Banyan Tussock Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Yellow Underwing is recorded against all the insects logged in Kolkata (16 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.
