Abstract: The spatial distribution of Maladera sp.adults on flue-cured tobacco plants in Yunnan Province was determined.Taylors power law,Iwaos patchness regression,and the negative binomial probability model were used to analyze the data.All three indices (b,β and k) of the three methods indicated an aggregated distribution of Maladera sp.Taylors power law provided a better description than Iwaos patchness regression.The negative binomial distribution parameter k was not dependent on-mean density.This indicates the presence of a common k (kc).The estimate of kc was 0.6529.This study provided basic data for establishing a sequential sampling plan for Maladera sp.