[Investigation of the Necrophagous Flies in Beijing].

OBJECTIVES: To explore the number of necrophagous flies and seasonal distribution of common necrophagous flies at present in Beijing. METHODS: The specimens of necrophagous flies were collected by the methods of animal carcass, trapping and feeding. And the specimens were observed and counted after the classification and preservation. RESULTS: The necrophagous flies in Beijing belonged to 4 families, 9 subfamilies, 21 genera and 46 species, and 12 species of them were the first records in Beijing. The necrophagous flies had the characteristics of regional and seasonal distribution. CONCLUSIONS: The data of seasonal distribution of necrophagous flies and common necrophagous flies in Beijing can provide reference for related research.