When a silkworm hatches from its eggs, its body is brown or black, tiny and hairy, and looks a bit like an ant, so it is called an ant silkworm. The ant silkworm is about 2 mm long and 0.5mm wide. After it crawls out of the egg shell, it will eat mulberry leaves after 2 ~ 3 hours.

The first age is from the ant silkworm to the first molting; Enter the second age after sleeping; Enter the third age after molting again; After the third molting, it enters the fourth age, and the fourth molting is also called big sleep. After a deep sleep, they enter the fifth instar, and the fifth instar silkworm grows extremely fast, with a body length of 6-7 cm and a weight of about 1 10,000 times the weight of the ant silkworm. 　

Extended data:

Living habits of silkworms:

Silkworm is a kind of abnormal insect, and the most common one is silkworm, also known as silkworm, which is one of the economic insects that spin cocoons on mulberry leaves. Silkworm originated in China, and its development temperature is 7 ~ 40℃, and the suitable feeding temperature is 20 ~ 30℃.

Silkworm babies live on mulberry leaves. After eating mulberry leaves constantly, their bodies turn white, and after a period of time, they begin to peel. When peeling, they don't eat or move for about a day, which is called "dormancy". After peeling once, it is a second-instar larva. Even if it peels once, it will increase by one year. The larva will peel for four times and become a fifth-instar larva. After eating mulberry leaves for 8 days, it will become a mature silkworm and start spinning and cocooning.

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