从某些农业昆虫的分布来讨论古北、东洋两地区在我国秦岭以东的分界线问题

章士美

A DISCUSSION ON THE LINE OF DEMARCATION OF THE PALEARCTIC AND ORIENTAL REGIONS EAST OF CHINLING BASED ON THE KNOWLEDGE OF THE DISTRIBUTION OF SOME AGRICULTURAL INSECTS

CHANG S. M.

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