我国古北界和东洋界在东部的分界线应该在淮河附近。
Palearctic and Oriental Regions should be based on Huaihe River as dividing line.
粉虱蚜属为典型的东洋区成分，但在中国大陆其分布向古北界有所渗透。
The aphids of Aleurodaphis are typical Oriental species; but, slightly permeated in Palaearctic on Chinese continent.
结论山西省庞泉沟自然保护区有瓣蝇类的区系特征是以古北界区系成分为主。
Conclusion The Calyptratae fauna in Pangquangou Nature Reserve of Shanxi province was mostly palaearctic.
其中古北界种连同古北界共同种占93.9%。表明山西省丽蝇科昆虫属于古北区系。
There are 93.9% of the total belonging to Palaearctic Region, which means, in Shanxi Province, most species have a Palaearctic distribution.
结论北京松山保护区寄蝇科昆虫区系特征以古北界成分为主，丰富了该地区此类昆虫的区系组成。
Conclusion the Palaearctic composition is the main characteristic of the Tachinidae fauna in Songshan National Nature Reserve of Beijing. This fauna is enriched by the findings in this region.
结论北京松山保护区寄蝇科昆虫区系特征以古北界成分为主，丰富了该地区此类昆虫的区系组成。
Conclusion the Palaearctic composition is the main characteristic of the Tachinidae fauna in Songshan National Nature Reserve of Beijing. This fauna is enriched by the findings in this region.
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