翅膀呈白色或灰色且質地柔軟的蛾。在蛹期製作的繭為蠶絲的原料。幼蟲階段只吃桑葉，被人類飼養已久。
A moth with soft wings that are white or gray in color. During its pupal stage, it spins a cocoon that serves as the raw material for silk thread. Its larva feeds exclusively on mulberry leaves and has been domesticated by humans for centuries.