本文于1957年在河北省的48个县和保定、承德、张家口三个市共收集蝇类标本4170只,经鑑定分属18属34种。在蝇属分布上以家蝇最多,占46.7％,其次是麻蝇占24.5％、腐蝇占10.4％、绿蝇占8.1％、金蝇占2.9％、厕蝇占2.0％、丽蝇占1.8％。在麻蝇属中各种的分布,据272只标本统计结果,以赭尾麻蝇居首位,占29.4％,其次是黑尾麻蝇 In 1957, 4170 flies were collected from 48 counties in Hebei Province, Baoding, Chengde and Zhangjiakou in 1957, and 34 species were identified in 18 genera. Musca domestica accounted for 46.7%, followed by 24.5% of flies, 10.4% of flies, 8.1% of green flies, 2.9% of gold flies, 2.0% of toilet flies and 1.8% of flies . According to the statistical results of 272 specimens, the most common species were Ocimum tachypus, accounting for 29.4%, followed by black-tailed flies