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
Bombyx mandarina differ in karyotype from those of inland China. Domestic silkmoths are closer to the latter regarding mtDNA sequence data, and especially lack some genetic apomorphies of the northeastern "B. mandarina". Thus, the initial domestic stock came from inland China. "B. mandarina" is able to hybridize with "B. mori". Both in the wild and in a domesticated environment, females release pheromones and wait for males to be attracted and fly to them. However, "B. mori" males cannot fly. Hybridisation in the wild, therefore, inevitably means breeding between domestic ("B. mori") females and wild ("B. mandarina") males. Hybridization is possible in both