Idea stolli
In 3 days ~40% in a week ~70%
Idea stolli, the common tree nymph, is a species of nymphalid butterfly in the Danainae subfamily. It is found in South East Asia. There are twelve Idea species, of which five occur in West Malaysia. The wings are white with black dots and veins. The wingspan is about 150 mm.
The larvae feed on Aganosma cymosa and Aganosma corymbosa. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Luang National Park | 🇹🇭 Thailand | |
| 2 | Danum Valley Conservation Area | 🇲🇾 Malaysia | |
| 3 | Sepilok | 🇲🇾 Malaysia | |
| 4 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia | |
| 5 | Kinabalu Park | 🇲🇾 Malaysia |
With luck
About 10% of wildlife watchers report a Common Tree Nymph sighting in Sepilok on a given day, based on 15 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 26th most-seen of the 87 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
May
In that month about 30% of wildlife watchers report a Common Tree Nymph in Sepilok on a given day, against under 5% in June, September and December–January, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Common Tree Nymph sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 5
Of the 5 parks where we can rate Common Tree Nymph sightings, Sepilok ranks 3rd at about 10%. The best odds are in Khao Luang National Park (Thailand, about 20%) and Danum Valley Conservation Area (Malaysia, about 20%).
Same family: Nymphalidae
The closest relatives of the Common Tree Nymph that you can see in Sepilok (family Nymphalidae, Brush-footed Butterflies) are Clipper (about 40%), Brown Pansy (about 30%) and Great Eggfly (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Common Tree Nymph is recorded against all the insects logged in Sepilok (15 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.
