Erionota torus
In 3 days ~10% in a week ~20%
Erionota torus, also known as the rounded palm-redeye, Sikkim palm dart, Sikkim palm red-eye and banana skipper, is a species of butterfly of the family Hesperiidae. It was described by William Harry Evans in 1941. It is found from southern and northeast India to Burma, Thailand, Laos, Vietnam, Malaysia, Singapore and China. It has also been recorded from Taiwan.
The wingspan is 65–70 mm. Adults have been recorded on wing in April to November. They feed on flowers nectar of banana trees. The larvae feed on Musa coccina, Musa formosana, Musa nana, Musa sapientum, Musa uranoscopos and Cocos nucifera. They make leaf shelters. The larvae reach a length of about 50 mm. Pupation occurs inside the leaf shelter. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Rounded Palm-Redeye sighting in Hong Kong on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 648th 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.
October
In that month about 10% of wildlife watchers report a Rounded Palm-Redeye in Hong Kong on a given day, against under 5% in November to September, the lowest months. That is one of Hong Kong's driest months, with about 50 mm of rain against 280 mm in June.
5th of 6
Of the 6 cities where we can rate Rounded Palm-Redeye sightings, Hong Kong ranks 5th at under 5%. The best odds are in Tuen Mun (China, about 10%), Bengaluru (India, about 10%) and Kochi (India, about 10%).
Same family: Hesperiidae
The closest relatives of the Rounded Palm-Redeye that you can see in Hong Kong (family Hesperiidae, Skippers) are Indian Palm Bob (about 10%), Formosan Swift (about 10%) and Pale Awlet (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Rounded Palm-Redeye is recorded against all the insects logged in Hong Kong (13 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.
