双钩巢粉虱Paraleyrodes pseudonaranjae Martin是一种原产于南美洲,并首先记录于佛罗里达、夏威夷和香港等地的粉虱。本文记录了这种粉虱在海南、广西和广东的分布,提供了种类鉴别特征,各期的形态特征及生态图,并列出了目前已知的21科40种寄主植物,广东记录的庞达巢粉虱应是本种的错误鉴定。随着定居时间的推移,双钩巢粉虱的为害性有加重的趋势。 Paraleyrodes pseudonaranjae Martin is a whitefly native to South America and first recorded in Florida, Hawaii and Hong Kong. This paper records the distribution of whitefly in Hainan, Guangxi and Guangdong, provides species identification features, morphological characteristics and ecological map of each stage, and lists the currently known 21 families 40 species of host plants recorded in Guangdong Pang Reaches whitefly should be the wrong identification of this species. With the passage of time, the harmfulness of B. tabaci had an aggravating trend.