Kallima horsfieldii
In 3 days ~50% in a week ~80%
Kallima horsfieldii, the blue oakleaf, southern blue oakleaf or Sahyadri blue oakleaf, is a nymphalid butterfly found in India. The underside appears like a leaf complete with midrib while the upperside is brilliantly coloured.
Males and females indigo blue. Forewing; with a broad, oblique, slightly curved, sinuous-edged, pale blue band, turning to white on the anterior half; the distance measured on the costa of the outer edge of thin band greater than half the length of the wing from the base; its inner margin bordered by short, obliquely-placed, detached linear black markings; apical area beyond the band jet black, with a preapical whites spot; medial hyaline (glass-like) spots, the lower varying in size, in interspaces 2 and 3. Hindwing uniform, the costa and apex broadly and the abdominal fold brown; vein 1 with long soft greyish-brown hairs along its length, extending also over the abdominal fold. Forewings and hindwings as in Kallima inachus, with a dark brown subterminal zigzag line, commencing below vein 3 on the forewing.
Underside as in Kallima inachus simulating a dry leaf, but the resemblance on the whole is perhaps less perfect... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sinharaja Forest Reserve | 🇱🇰 Sri Lanka |
More parks will be added in future updates.
Possible
About 20% of wildlife watchers report a Sahyadri Blue Oakleaf sighting in Mumbai on a given day, based on 151 verified sightings from GBIF citizen-science data. It is the 41st most-seen of the 362 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 40% of wildlife watchers report a Sahyadri Blue Oakleaf in Mumbai on a given day, against under 5% in May and June, the lowest months. That is one of Mumbai's wettest months, with about 380 mm of rain against almost none in January.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Sahyadri Blue Oakleaf 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 cities where we can rate Sahyadri Blue Oakleaf sightings, Mumbai has the highest daily chance: about 20%. Next come Pune (India, about 10%).
Same family: Nymphalidae
The closest relatives of the Sahyadri Blue Oakleaf that you can see in Mumbai (family Nymphalidae, Brush-footed Butterflies) are Great Eggfly (about 40%), Blue Tiger (about 30%) and Plain Tiger Butterfly (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Sahyadri Blue Oakleaf is recorded against all the insects logged in Mumbai (151 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.
