Application of galleria mellorella larvae as intermediate host in artificial breeding of dastarcus helophoroides

The invention discloses an application of galleria mellorella larvae as an intermediate host in artificial breeding of dastarcus helophoroides; the application comprises the following steps: feeding galleria mellorella with artificial feed indoors, and collecting old galleria mellorella larvae; putting female adults of the soft cocoon moths newly emerged in the same day into the old galleria mellorella larvae, and carrying out constant-temperature and constant-humidity illumination culture to paralyze the old galleria mellorella larvae; and placing the newly hatched larvae of dastarcus helophoroides on the paralyzed old galleria mellorella larvae according to a quantity ratio of 1: 1-2, and performing culturing. The galleria mellorella larvae used in the method are relatively easy to obtain and low in cost. The market price is about 0.08 yuan to 0.21 yuan per pet, and the galleria mellorella larvae can be massively purchased in the market or artificially cultured indoors. The indoor artificial feeding technol