Caleta decidia
In 3 days ~30% in a week ~60%
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.
With luck
About 10% of wildlife watchers report an Angled Pierrot sighting in Mumbai on a given day, based on 72 verified sightings from GBIF citizen-science data. It is the 67th most-seen of the 362 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
July to October
In those months about 20% of wildlife watchers report an Angled Pierrot in Mumbai on a given day, against under 5% in February and April–May, the lowest months. Those are among Mumbai's wettest months, with about 480 mm of rain a month against almost none in January.
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.
Yes
Of the 2 cities where we can rate Angled Pierrot sightings, Mumbai has the highest daily chance: about 10%. Next come Pune (India, under 5%).
Same family: Lycaenidae
The closest relatives of the Angled Pierrot that you can see in Mumbai (family Lycaenidae, Gossamer-winged Butterflies) are Red Pierrot (about 30%), Plains Cupid (about 20%) and Lime Blue (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 Mumbai (72 verified sightings), 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.
