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应用３种不同抽样法，研究了矢尖蚧在空间的分布型均为聚集分布。通过模糊聚类分析，将矢尖蚧在树冠上的分布分为４个亚群，矢尖蚧种群数量大小依次是：亚群Ⅳ＞Ⅲ＞Ⅱ＞Ⅱ。
Three different sampling methods were used to study the spatial distribution patterns of Agkistrodon aculaea in aggregates. By means of fuzzy clustering analysis, the distribution of Agrimus ponderosa on the canopy was divided into four subgroups. The population size of Agriacea punctilio was: subgroup Ⅳ> Ⅲ> Ⅱ> Ⅱ.