What kind of insect is this? What is its professional name? Just like peanuts have two parts. Size?

Sawfly: also known as sawfly, it is a reptile of COLEOPTERA, Sawfly Family, and Schizophrenia. It is native to Southeast Asia and widely distributed, including China (Guangdong, Yunnan, Tibet and Hong Kong), Thailand, Myanmar, Laos, Vietnam, Cambodia, India and Malaysia.

It belongs to small and medium-sized saw shovels, which can be divided into short teeth, middle teeth and long teeth according to tooth types, but most of them are short teeth, and individuals with large teeth are rare. If artificial breeding is lucky, there will be middle teeth occasionally, but basically no long teeth can be seen. Therefore, the greatest pleasure of breeding this breed is to raise individuals with long teeth.