Idea stolli
In 3 days ~50% in a week ~80%
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 |
Possible
About 20% of wildlife watchers report a Common Tree Nymph sighting in Khao Luang National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 21st most-seen of the 36 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.
May
In that month about 40% of wildlife watchers report a Common Tree Nymph in Khao Luang National Park on a given day, against under 5% in January, April, June–July and October, 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.
Yes
Of the 5 parks where we can rate Common Tree Nymph sightings, Khao Luang National Park has the highest daily chance: about 20%. Next come Danum Valley Conservation Area (Malaysia, about 20%) and Sepilok (Malaysia, about 10%).
GBIF citizen-science records
It is estimated from how often the Common Tree Nymph is recorded against all the insects logged in Khao Luang 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.
