When the temperature of silkworm chrysalis warms, it will turn into silkworm moths. , the common ones are silkworms and tussah silkworms.

Bombyx moth:

After emergence, the adult moth spits out alkaline intestinal fluid to moisten and loosen the cocoon layer at the head end, and uses its thorax and legs to open the cocoon silk and emerge from the cocoon. . The wings are soft and folded at first, and then unfold as the moth body dries. The whole body is covered with white scales, and there is a pair of compound eyes and a pair of double tentacles with touch and smell on both sides of the head. The mouthparts have degenerated. There is one pair of thoracic legs on the ventral surfaces of the front, middle and back thoracic segments, and one pair of wings on the back of the mesothorax and metathorax. The abdomen of female moths has 7 segments and the male moths have 8 segments. The male moth's external genitalia is formed from the 9th and 10th abdominal segments of the larvae, and the female moth's external genitalia is formed from the 8th, 9th and 10th abdominal segments. During mating, the female moth stretches out her ovipositor, and the temptation glands release sex pheromones (mulinol and mullinaldehyde) to attract the male moth. Fertilized eggs can be produced within 1.5 to 2 hours of mating. A female moth lays about 400 to 700 eggs, most of which are laid on the day of emergence and end on the third day. The adults do not feed and die naturally in about 10 days after mating and laying eggs.

tussah moth:

The pupa emits into a moth inside the cocoon after sensing temperature, spits out an alkaline solution to soften the sericin of the cocoon layer at the cocoon hole, and then drills out from the cocoon hole. The body length of the moth is 3 to 5 cm. The female moth is slightly larger, with a wingspan of 14 to 16 cm. It is gray-brown or orange-yellow and covered with scales. There is a pair of membranous eye-like markings on each front and rear wings, surrounded by black, red, blue, white and other color strips