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本文用几种聚集度指标及Ｔａｙｌｏｒ的幂法、Ｉｗａｏ的ｍ一ｍ回归法分析松梢小卷蛾（ＲｈｙａｃｉｏｎｉａｐｉｎｉｃｏｌａｎａＤｏｕｂｅｌｄａｙ）幼虫的种群空间分布型为聚集分布，分布的基本成份为个体群，个体群中个体分布的平均拥挤度为６．１１９，个体群分布的相对聚集度随种群密度而变化的速率为一０．０１１，呈现出随种群密度的增加而降低的趋势。在资料代换中，以Ｉｗａｏ的方法最适合，文中还给出了松梢小卷蛾幼虫在不同虫口密度下的最适抽样数及序贯抽样方法。
In this paper, we analyzed the spatial distribution patterns of the population of the Rhyacioniapinicolana Doubelday larvae by means of the aggregation index and the Taylor’s power method, and Iwao’s m-m regression analysis. The distribution of the population distribution was based on individuals, individuals The average crowding degree of individual distribution was 6.119. The relative aggregation degree of individual group distribution varied with the population density as 0.011, showing a trend of decreasing with population density increasing. In the data substitution, Iwao the most suitable method, the paper also gives the pine snag moth larvae at different insect population density of the optimal number of samples and sequential sampling method.