我们对河南开封的白蛉调查开始于1951年暑假,曾将调查结果发表于中南医学杂志二卷二期。但当时调查范围仅限于东郊,经捕获解剖鉴定的白蛉数目亦较少,很难说明开封地区的白蛉种类分布的情况,为了进一步检查我们前一调查工作的准确性。于1953年五月二十五日开始对开封四周距市区约1-5华里范围内的较大村庄六处进行 Our survey of whiteflies in Kaifeng, Henan Province started in the summer of 1951 and was published in the Second Volume of Central South Medical Journal. However, the scope of the investigation was restricted to the eastern suburbs. The number of white flies captured through anatomic identification was also small. It was hard to explain the distribution of white flies in the Kaifeng area. In order to further examine the accuracy of our previous survey, Beginning on May 25, 1953, six large villages within a range of about 1-5 li from the urban area around Kaifeng