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对311种水稻昆虫(害虫87种、天敌昆虫224种)进行区系分析的结果表明,湖南水稻昆虫在世界昆虫区系中归属于东洋区系并接近古北区系南缘、以华中、华南和西南共有种昆虫较多。本文记载了大致以湖南25～30°N之间为分布的南限或北限的水稻昆虫26种。根据湖南地理和地貌特征,作物综合布局,昆虫种类组成及其发育等,以27°N为南北分界线,将湖南分为湘中北区和湘南区,在湘南、湘中东、湘西和湘北等农业区的水稻昆虫既有共有种,又有特有种。
The results of the phylogenetic analysis of 311 rice insect pests (87 species, 224 natural enemy insects) showed that Hunan rice insects belonged to the Oriental Fauna in the world’s insect fauna and were close to the southern margin of the Gubei area. And a total of Southwest species insects more. This paper records 26 species of rice insects that are mostly distributed in the south or north of 25 ~ 30 ° N in Hunan province. According to the geographical and geomorphological features of Hunan, comprehensive crop layout, species composition and development of insects, Hunan is divided into southern Hunan and southern Hunan at 27 ° N, with southern Hunan, eastern Hunan, western Hunan and northern Hunan There are both common species and unique species of rice insects in agricultural areas.