To add a little more, as Thomas' and Haneesh's excellent photos show,
the colour and form of the caterpillar is so well matched to its
droppings that unless one knows this peculiar behaviour , one would tend
to think it's a dried bit of the leaf tip.
If this butterfly is in your area , it is very easy to attract it.
Keep a plate of rotting or over-ripe fruit (pappaya, pineapple,banana)
in your windowsill, balcony or terrace. A little bit of beer added will
do no harm . ( for the bait, i mean!! )
If you have a mussaenda plant closeby, u can expect it to lay eggs.
A kadam tree , Neolamarkia cadamba , is another plant to look for it.
sheila tanna
sheila
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Enjoy