目前河南省的昆虫、蜘蛛、蜱螨共有8 637种,隶属于32目551科3 967属.其中东亚成分4 388种,显著居主体地位,古北成分1 847种,东洋成分1 577种,二者相差不大,广布成分420种,所占比例最低.为了解河南省各地昆虫分布差异及相互联系的紧密程度,使用多元相似性聚类分析法(Multivariate similarity clustering analysis,MSCA)对这些生物的分布资料进行了分析,结果表明,全省11个地理小区的总相似性系数为0.185,在0.30的相似性水平上,全省分为4个昆虫地理区:平原盆地区,西北山地台地区,伏牛山区,桐柏大别山区.比较分析了4个昆虫地理区的昆虫区系特征,共同特征是东亚种类均居优势地位,广布种类最少,其中,平原盆地区面积最大,物种丰富度最低,特有种类最少;伏牛山区物种丰富度最高,特有种类最多;西北山地台地区古北种类显著多于东洋种类,桐柏大别山区东洋种类显著多于古北种类.%The total 8 637 species of insect,spider and mite belonging to 3 967 genera,551 families of 32 orders are reported from Henan province,China. Among them,there were 4 388,1 847,1 577 and 420 species, belonging to East Asian, Palaearetie, Oriental and Eurytopic element respectively. Their distribution information are analyzed by multivariate similarity clustering analysis(MSCA). The results showed that the general similarity coefficient of 11 geographical regions of Henan province were 0. 185. At 0.30 level,the whole province were divided into 4 insect distribution regions :Plain- basin region,Northwest Henan hill region, Funiu mountain region and Tongbai -Dabie mountain region. Fauna characters of the 4 regions were analyzed.
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