Open Question: what does the eastern tent like to eat?

Ok, so I see lots of these little guys in my aunt's backyard and so i looked it up on my lap top and i see its called the eastern tent. Now i want to raise one, but there's just one there's question i need to solve what do they eat? P.S. i know there are moths.

Source:
http://answers.yahoo.com/question/index?qid=20110410090559AAhgNnG

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