Moth will drink nectar. Some moths are farmed for their economic value. The most notable of these is the silkworm, the larva of the domesticated moth "Bombyx mori". It is farmed for the silk with which it builds its cocoon. , the silk industry produces more than 130 million kilograms of raw silk, worth about 250 million U.S. dollars, each year. Not all silk is produced by "Bombyx mori". There are several species of Saturniidae that also are farmed for their silk, such as the ailanthus moth ("Samia cynthia" group of species), the Chinese oak silkmoth ("Antheraea pernyi"), the Assam silkmoth
Larva have been suggested by many entomologists, and following classification is based on Antonio Berlese classification in 1913. There are four main types of endopterygote larvae types: Larva A larva (plural: "larvae" ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. The larva's appearance is generally very different from the adult form ("e.g." caterpillars and butterflies) including different unique structures and organs that do not occur in the adult form. Their diet may also be considerably different. Larvae