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bullet In caterpillar stage they eat Richmond Birdwing vine [Aristolochia Praevenosa], and native Pipeflowers; Aristolochia Deltantha and A. Tagala.
bullet Adult butterflies feeds on nectar from flowering plants that grow in  rainforest...
bullet Caterpillars have huge appetites and can eat all  leaves on a Richmond Birdwing vine. If they chew around outside of  stem they can kill plant . Therefore, several plants may be needed to feed Caterpillars.
bullet Each time a caterpillar eats it gradually gets a bigger appetite. When the caterpillar's hatch, each one eats more than a square metre of leaves and stem before it pupates.

 

                               

Richmond Birdwing vine                                                       Dutchman's pipe vine 

 

                                                 

http://images.google.com.au/imgres?imgurl=www.csiro.au/news/features/DutchmansPipeVine.jpg&imgrefurl=http://www.csiro.au/news/features/birdwingbutterfly.html&h=350&w=225&prev=/images%3Fq%3D%2Brichmond%2Bbirdwing%2Bbutterfly%26svnum%3D10%26hl%3Den%26lr%3D%26ie%3DUTF-8%26oe%3DUTF-8%26sa%3DG

http://www.enn.com/enn-news-archive/2000/10/10012000/birdwing_32065.asp?P=2