螟蛉,即养子、义子。螟蛉本是一种害虫,是桑树上的小青虫,故又称为青虫,属于蛾类的幼虫。古人认为蜾赢不产子,喂养螟蛉为己子,后来就称养子为“螟蛉”。到了南朝,医学家陶景弘发现蜾赢养螟蛉为己子根本是错误的说法。据他的观察,蜾赢常捕捉螟蛉作为自己幼虫的粮食,并非饲养它、让它成为同类作为后代。古人以为是蜾赢养螟 Borer, that adopted son, son. Borer is a pest, is a small worm on the mulberry, it is also known as the caterpillar, which belongs to moth larvae. The ancients believed that the win not to give birth to children, feeding borer as their own children, and later said that adoptive son “borer ”. In the Southern Dynasties, Tao Jinghong, a medical scientist, found that it was simply a mistake to win a moth by himself. According to his observation, 蜾 win often capture 蛉 as their own larvae food, not keeping it, let it be the same as the offspring. The ancients thought it was 蜾 winters borer