关键词: 蝇类, 监测, 构成比, 生境, 消长

Abstract: Objective To investigate common species, population densities, and seasonality of flies in human settlements and surrounding environments in China, and to provide a scientific basis for fly prevention and control. Methods The data of flies captured by the cage trapping method were collected from the National Vectors Surveillance in China in 2018. Excel 2016 software was used to analyze the constituent ratios. Population density was analyzed and compared between different species or flies in different habitats or provinces, and its seasonality was evaluated. Results Musca domestica, flesh flies, Lucilia sericata, and M. sorbens were found to have higher densities in 2018, which were 1.21, 0.50, 0.47, and 0.29 flies per cage, respectively. Farmers' markets had the highest fly density (5.61 flies per cage). The peaks of all flies captured and dominant species were both in June and July. Conclusion Musca domestica is the predominant species. The peaks of fly densities occured in June and July. Farmers' markets were the main habitat for the occurrence of flies. Therefore, preventive measures should be undertaken ahead of the peak period (i.e., April and May) to minimize the flies infestations.

Key words: Fly, Surveillance, Constituent ratio, Habitat, Seasonality