Photo by Dan Hemenway. Just as monarchs famously prefer milkweed for food and egg-laying, swallowtail butterflies also have a preferred food as caterpillars. They prefer the leaves of members of the ...

Schaus’ swallowtail caterpillars prefer the fresh new leaf growth of their ... Their survival relies on two known larval host plants: torchwood and wild lime (Amyris elemifera and Zanthoxylum fagara).

Some families of caterpillars (larvae of butterflies and moths) have developed a specific kind of interaction with ants. One of these families (Riodinidae) includes two species that interact ...