Abstract:Oriental fruit fly, Bactrocera dorsalis (Hendel) (Diptera:Tephritidae), is native to tropical and subtropical zone. Temperature and moisture are the key factors determining its distribution. We used the computer model, CLIMEX to predict the fly‘s potential distribution in China. Seventeen variables were used and they were the lower temperature threshold (DV_0), lower optimum temperature (DV_1), upper optimum temperature (DV_2), upper temperature threshold(DV_3), length of growing season (PDD), lower soil mo...