They are mainly distributed in the palaearctic, nearctic, oriental, ethiopian region.
他们主要分布在古北区、东洋区、新北区和非洲区。
Distribution in north America, Palaearctic, India and the north-west Himalayas mountain.
分布在北美，古北界，印度和西北。
Conclusion The Calyptratae fauna in Pangquangou Nature Reserve of Shanxi province was mostly palaearctic.
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。
Furthermore, Adelgidae species in China includes 20 known species in 6 genera and mainly on Palaearctic Regions.
中国球蚜科有6属20种，分布在黑龙江、云南、四川等地，主要是古北区成分。
The aphids of Aleurodaphis are typical Oriental species; but, slightly permeated in Palaearctic on Chinese continent.
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。
Conclusion: The species of genus Lispe in Hebei Province make up 52.78% of known Lispe in China and have a Palaearctic distribution.
结论：河北省溜蝇属昆虫种数约占该科全国已知种数的52.78%，属于古北区系。
Results there are 15 species of genus hydrotaea in hebei province , which all destribute in palaearctic and 5 species only in palaearctic.
结果在河北省发现齿股蝇属15种，古北区均有分布，其中5种仅在古北区有分布。
There are 93.9% of the total belonging to Palaearctic Region, which means, in Shanxi Province, most species have a Palaearctic distribution.
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。
Up to the present 239 species of the genus have been known from the world. they are mainly distributed in the palaearctic, nearctic, oriental, ethiopian region.
迄今为止，该属全世界共记载239种，为世界性分布，但主要分布于古北区、东洋区、新北区和非洲区。
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.
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。
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