Biologic evolution

Because it will be a rest tomorrow, the larva of the swallowtail butterfly that newly found it was taken home to the house. The leaf of the mandarin orange to eat tomorrow was gotten. It wrote yesterday. Does the leaf of the mandarin orange eat only the appearing leaf?Because the doubt wanted to be solvedThe one that the leaf of the mandarin orange was gathered in another place was put. The leaf with thick color is a leaf of the mandarin orange of the place where the larva was found. The leaf with light color was gathered in a different place.



It is a larva who found it with the leaf of the mandarin orange with light color. It eats the leaf of the mandarin orange and it is a larva. It doesn't understand what to become when becoming an imago though it sees and it is understood that it is not swallowtail butterfly's larva. Please teach when there is a person who knows.
The leaf of the mandarin orange was wrong though had thought that it was what only the swallowtail butterfly eats.