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根据1995年烟田多异瓢虫Hippodamiavariegats（Goeze）调查，计算了6种分布型指数，以及频次拟合优度检验，结果表明：该虫幼虫、蛹在陕北烟田里聚集分布，其聚集强度随种群密度增加而降低，聚集原因是环境差异；卵块分布同时具有聚集和随机的趋势，成虫为随机分布。同时建立了各虫态的理论抽样量公式，估测种群密度公式。
According to the investigation of Hippodamiavariegats (Goeze) in 1995, six kinds of distributional indices were calculated and the frequency-fitting goodness test was conducted. The results showed that the larvae and pupae of the larvae clustered in the tobacco fields of northern Shaanxi, The intensity decreased with population density increasing. The reason for the aggregation was environmental differences. The distribution of egg masses also had the tendency of aggregation and randomness. The adults were randomly distributed. At the same time, we established the theoretical sampling formula for each insect state and estimated the population density formula.