Why did Liang Shanbo and Zhu Yingtai become butterflies and not others?

Because in the traditional culture of China, butterflies represent beauty. Butterflies represent beauty and eternity, while pairs of butterflies represent love. So Liang Zhu became a butterfly in folklore.

In the ancient culture of China, there are many stories about butterflies. Zhuang Zhoumeng Butterfly is about butterflies. Butterflies are beautiful in appearance, moving when flying among flowers and plants, and the scene of two butterflies flying together is also very attractive. So butterflies often appear in the articles of ancient literati.

Butterfly lovers is one of the four ancient folk love stories in China. It is the most attractive oral inheritance art and national intangible cultural heritage in China, and it is also the only Chinese folk literature and art with wide influence in the world.

Since the Eastern Jin Dynasty, 1700 years has been circulated among the people. It can be said that China is a household name, spreading far-reaching, and is known as the eternal swan song of love. Throughout the ages, countless people have been infected by butterfly lovers's tragic love.

Liang Zhu's legends and love stories are real events in history, which are proved by historical materials and cultural relics.

References:

Baidu encyclopedia-Liang Zhu