Silkworm chrysalis is the silkworm spit silk cocoon cocoon in the cocoon into the chrysalis.

Silkworm pupa is also called late silkworm pupa, small bee children, silkworm pupa is not only delicious and nutritious, or extremely valuable source of animal protein, but also extracted from the raw materials of more chemicals. Silkworm pupa is a growth stage of the silkworm, the silkworm is native to China, an economic insect, belongs to the Lepidoptera, the great fragrant moth family under the insect.

Silkworm pupa appearance

Silkworm pupa's body shape is like a spindle, divided into the head, thorax, abdomen three body segments.

The head is very small, with compound eyes and antennae; the thorax has thoracic peduncles and wings; the bulging abdomen has nine body segments. The color is coffee-colored. Professional workers are able to tell the male and female from the lines and brown dots on the abdomen of the nymphs.

When the silkworm first pupates, the body color is yellowish, and the pupal body is tender and soft, and gradually it will become yellow, yellowish brown or brown, and the pupal skin is hardened. After about 12 to 15 days, when the pupal body begins to soften again, the pupal skin is a little wrinkled and earth brown cocoon color, it will become a moth.