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 Taroko National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 272nd most-seen of the 447 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.
April
In that month about 20% of wildlife watchers report a Restricted Demon in Taroko National Park on a given day, against under 5% in March, May, August–October and December–January, 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.
2nd of 2
Of the 2 parks where we can rate Restricted Demon sightings, Taroko National Park ranks 2nd at about 10%. The best odds are in Sinharaja Forest Reserve (Sri Lanka, about 20%).
Same family: Hesperiidae
The closest relatives of the Restricted Demon that you can see in Taroko National Park (family Hesperiidae, Skippers) are Indian Palm Bob (about 10%), Brown Awl (about 10%) and Striped Bush Hopper (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Restricted Demon is recorded against all the insects logged in Taroko National Park (7 verified sightings from 2019 to 2026), 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.
