Notocrypta curvifascia
In 3 days ~20% in a week ~50%
Notocrypta curvifascia, the restricted demon, is a butterfly belonging to the family Hesperiidae. N. curvifascia is commonly found in many regions of temperate and tropical East Asia, Indonesia, and the Indian subcontinent.
Among butterflies, it is relatively small, at approximately 4 cm long (adult). Its wings are dark brown to black, with a white eyespot near the trailing end. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sinharaja Forest Reserve | 🇱🇰 Sri Lanka | |
| 2 | Taroko National Park | 🇹🇼 Taiwan |
With luck
About 10% of wildlife watchers report a Restricted Demon sighting in Hong Kong on a given day, based on 70 verified sightings from GBIF citizen-science data. It is the 164th most-seen of the 1125 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
March to December
In those months about 10% of wildlife watchers report a Restricted Demon in Hong Kong on a given day, against under 5% in January and February, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Restricted Demon sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 4 cities where we can rate Restricted Demon sightings, Hong Kong ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Taipei (Taiwan, about 10%) and Tuen Mun (China, about 10%).
GBIF citizen-science records
It is estimated from how often the Restricted Demon is recorded against all the insects logged in Hong Kong (70 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.
