This caterpillar pupates in a cocoon like all other moth caterpillars, concealing itself under a leaf once it has emerged from the larval stage. It does this according to a clever premeditated plan whose every stage requires great skill. Since a fresh green leaf cannot be bent to form a protective shelter, the caterpillar overcomes this problem by the simplest imaginable solution. To serve its purpose, it first ties the leaf to the branch with its silk,