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Heliconius erato
Nice white/orange/black caterpillar found on a passion fruit leaf.
Bayucca, I think your suggestion is right, thank you. The butterfly is common here.
There is another link from Costa Rica:
http://janzen.sas.upenn.edu/Wadults/resu...
It is very similiar to this one http://www.projectnoah.org/spottings/655... that I spotted some time ago.
It looks like a zebra longwing butterfly caterpillar; the general appearance and the host plant match, but the orange spots are throwing me off.