Silkworm moth:
After eclosion, the adults spit out alkaline intestinal juice to moisten and loosen the cocoon layer at the head end, and push the cocoon silk with their chests and feet to get out of the cocoon. Wings are soft and folded at first, and spread out when the moth's body dries. The whole body is covered with white scales, and there are 1 pairs of compound eyes and 1 pairs of comb-shaped antennae with touch and smell on both sides of the head, and the mouthparts have degenerated. There are 1 pairs of pectoral feet on the ventral surface of the anterior, middle and posterior thoracic segments, and 1 pairs of wings on the dorsal surface of the middle and posterior thoracic segments. There are 7 female moths and 8 male moths in the abdomen. The external genitalia of the male moth began to change from the 9th and 10 abdominal nodes of the larva, and the external genitalia of the female moth began to change from the 8th, 9th and 10 abdominal nodes. During mating, the female moth extends out of the ovipositor, and the sex pheromones (silkworm alcohol and silkworm aldehyde) released by the attracting gland attract the male moth, and the fertilized egg can be produced after mating 1.5 ~ 2 hours. A female moth lays about 400 ~ 700 eggs, most of which lay eggs on the day of emergence and end on the third day. Adults do not eat, mate and lay eggs 10 days or so and die naturally.
Tussah moth:
After the pupa feels the temperature, it emerges as a moth in the cocoon, spits out alkaline solution to soften sericin in the cocoon layer at the cocoon hole, and then drills out from the cocoon hole. The moth is 3 ~ 5 cm long, and the female moth is slightly larger, with wings spread 14 ~ 16 cm, grayish brown or orange yellow, and the whole body is covered with scales. There are 1 pairs of membrane-like eye markings on the front and rear wings, and black, red, blue and white stripes around the markings.