Agraulis vanillae, better known as the Gulf Fritillary butterfly itself does not drink nectar from Passiflora...well that was what was believed but in April 2002 it was observed drinking from P. manicata by Mark Cooper. Bill Levinson's picture above of Agraulis vanillae nectaring on P. caerulea confirms this. It also lays it's eggs on Passiflora including P. caerulea, P. foetida & P. incarnata. They can smell a passion flower from a great distance away. I have read that they have better sense of smell than dogs. Their caterpillars feed on the leaves when they hatch out. The orange & black colours of the caterpillars are a universal indicator to predators to stay clear as it is highly poisonous with irritant spines. From eating Passiflora it has absorbed cyanogenic glycosides, alkaloids & other compounds,which will also protect the adult butterfly. | 
Agraulis vanillae
