Studies on the spatial construction and distribution of masson pine caterpillar (Dendrolimus punctatus (Walker)) pupae and its parasitic natural enemy guilds for the overwintering generation in three pine forests (i.e., the pure masson pine stands of high and the low damage level, and the Pinus elliottii P.massoniana P.taeda mixed pine forest) were carried out using geostatistics. The results of analysis reveal spatial distributions of pupae and its parasitic natural enemy guilds semivariograms. The s...