What kinds of silkworms do you have? What's the use of the tip on the tail?

Silkworm is the main raw material source of silk and plays a very important role in human cultural history and economic life. Bombyx mori is a kind of abnormal insects, the most common is silkworm, also known as silkworm, usually take mulberry leaves as food to spin cocoons of economic insects, more varieties. We all know that the silkworm is white in shape and has a small tip on its tail. What is the use of that?

What kinds of silkworms are there?

1. Silkworm

Bombyx mori is the most common variety, also known as silkworm, mainly distributed in temperate, tropical and subtropical regions. The main silkworm areas in China are Guangxi, Jiangsu, Zhejiang, Sichuan, Shandong, Guangdong, Chongqing, Anhui and so on. Silkworms not only like to eat mulberry leaves, but also like to eat vegetable leaves, elm leaves, dandelions, lettuce leaves and so on.

2. Castor silkworm

Castor silkworm is a variety that takes castor silkworm leaves as food, but castor cocoons can not be reeled, they can only be used as raw materials for silk spinning and spinning castor silkworm silk.

3. Tussah

Tussah is a variety of tussah leaves as food, mainly distributed in China, but also in North Korea, South Korea, Russia, Ukraine, India and Japan and other countries. Tussah cocoon can be reeled, tussah silk is the raw material of tussah silk, tussah pupa is edible, and moths are raw materials of medicine, chemical industry and food industry. The eggs of tussah are good intermediate hosts for biological control of Trichogramma.

4. Cassava silkworm

Cassava silkworm is a variety of silkworm that takes cassava as food. It was first successfully cultured in Cenxi County, Guangxi, and later raised in Guangdong, Fujian and other places.

5. Bombyx mori

The silkworm, Bombyx mori, which takes mulberry leaves as food, was first successfully reared in Tu and Miao people in Hunan Province, and later in Sichuan, Guangxi, Gansu and other places.

6. Bombyx mori

Bombyx mori is a kind of silkworm that takes the leaves of tussah plants of Fagaceae as food, the silk produced is green, the color of the silk is very beautiful, maintains the natural green, and is a very high-grade silk fabric.

7. Amber silkworm

Amber silkworm, also known as Asam or Mu Jia silkworm, is a kind of silkworm that takes nanmu leaves as food, the cocoon color is golden, and the imitation used to make is very valuable and looks amber with luster.

Second, what is the function of the tip on the silkworm's tail?

The tip of the silkworm's tail is its degenerated valve and a distinguishing feature between male and female. The tail horn of the female silkworm is tilted upward with black spots. The horns of the male silkworm tail are tilted upward and have no black spots. The tail horn can also reflect the health of silkworms.

The tail still plays a certain role after the silkworm breaks its cocoon into a moth. The tail of a female moth can also emit a special smell to attract male moths to mate. After mating, the male moth will die immediately, and the male and female moths will lay hundreds of eggs in one night and then die slowly.