中国瘿绵蚜属的地理分布(同翅目：瘿绵蚜科)

以中国分布的２５种瘿绵蚜属Ｐｅｍｐｈｉｇｕｓ蚜虫为材料，研究了瘿绵蚜属在中国的分布特点。结果表明，该属蚜虫在古北界和东洋界均有分布，但古北界占绝对优势。在中国昆虫地理区划中，７个区均有分布，但以华北区和青藏区最为丰富，华中区和华南区最少。除华中区和华南区外，各区均有特有成分分布，县以华北区和青藏区最盛。由于没有明显的地理阻隔，华北区、东北区、蒙新区之间有种类交流现象存在，而它们与青藏区和西南区之间

BIOGEOGRAPHICAL DISTRIBUTION OF PEMPHIGUS HARTIG FROM CHINA (HOMOPTERA:PEMPHIGIDAE)

This paper studies the bio geographical distribution of Pemphigus Hartig from China by means of 25 species from China The results are indicated that the aphids of Pemphigus are in the Palearctic Region and the Oriental Region, but mainly in the Palaearctic Region The aphids of Pemphigus are in 7 regions of insect bio geographical regions in China, but mainly in North China region and Qinghai Xizang region North China region is the first distribution center of the genus, Qinghai Xizang region is the second one Addition, the aphid components in North China, North East and Menggu Xinjiang regions are often exchanged each other, because of the absence of distinct and large bio geographical barriers Based on the co evolution between aphids and host plants, the recent differential center of Pemphigus is discussed in this paper, too