Caleta decidia
In 3 days ~70% in a week ~90%
Caleta decidia, the angled Pierrot, is a species of blue butterfly found in south Asia and southeast Asia. The male's upperside is dark brown. Both wings crossed by a common broad band of white commencing at the second discoidal nervure of the anterior wing where it projects towards the outer margin. Underside is white having anterior wing with a small spot at base, a band before the middle, a large spot on the costal margin near the apex, a large spot at the anal angle, the apex which is marked by two white spots, the outer margin and a spot at its middle, all dark brown. Posterior wing is with a band near the base, a small spot on the inner margin, a large spot below this, a bifid spot near the apex, a spot between this and a series of submarginal lunular spots, all dark brown.
The butterfly is found in Myanmar, Thailand, Laos, Vietnam, Cambodia, Nepal and India. Caleta caleta, a blue butterfly species List of butterflies of India (Lycaenidae) Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sinharaja Forest Reserve | 🇱🇰 Sri Lanka |
More parks will be added in future updates.
Possible
About 30% of wildlife watchers report an Angled Pierrot sighting in Sinharaja Forest Reserve on a given day, based on 25 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 13th most-seen of the 117 insects we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
February and April–May
In those months about 40% of wildlife watchers report an Angled Pierrot in Sinharaja Forest Reserve on a given day, against under 5% in June and October, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Angled Pierrot sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Sinharaja Forest Reserve, in our data
Sinharaja Forest Reserve is the only park on Wallace's Line with enough records to rate Angled Pierrot sightings: about 30% of wildlife watchers there report one on a given day.
Same family: Lycaenidae
The closest relatives of the Angled Pierrot that you can see in Sinharaja Forest Reserve (family Lycaenidae, Gossamer-winged Butterflies) are Common Cerulean (about 30%), Red Pierrot (about 20%) and Abisara echeria (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Angled Pierrot is recorded against all the insects logged in Sinharaja Forest Reserve (25 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.
