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。

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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。

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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。

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