Notocrypta curvifascia
In 3 days ~50% in a week ~80%
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 |
Possible
About 20% of wildlife watchers report a Restricted Demon sighting in Sinharaja Forest Reserve on a given day, based on 13 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 35th most-seen of the 117 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.
September
In that month about 50% of wildlife watchers report a Restricted Demon in Sinharaja Forest Reserve on a given day, against under 5% in February, April–May, July, October and December, 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.
Yes
Of the 2 parks where we can rate Restricted Demon sightings, Sinharaja Forest Reserve has the highest daily chance: about 20%. Next come Taroko National Park (Taiwan, about 10%).
GBIF citizen-science records
It is estimated from how often the Restricted Demon is recorded against all the insects logged in Sinharaja Forest Reserve (13 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.
