THE GEOGRAPHIC DISTRIBUTION OF COLLOR PATTERNS OF ASIATIC BEETLE IN YUNNAN PROVINICE

The Asiatic beetle,Leis axyridis,is highly variable in the collor pattern,According to Geng et Tan,northern China(Harbin,Shenyang) is occupied by the races nearly uniform for the yellow phases(19-signata,succinea and bimaculata pattern) Farther southern(Cantan),the yellow phases reduce the percent and.the black phases(spectabilis,conspicua,and anlica pattern) increase in frequency(Table 3).The data mention,yellow phases occur in 38.71 percent and the black phases increase to 61.28(37.09+16.13+8.06) percent of individuals in Kunming(1963).During 1980-1981,the authors collected the Asiatic beetle in Kunming and its vicinities.A short summary of the data is shown in Table 4.The yellow phases occur in 39.98 percent and the black phases hold 59.36 percent of individuals.The ratio is more approximate to the data of 1963.To go a step further,the recent discovery of Leis axyridis var.axyridis Pallas in Yunnan Province is a more important fact to explain the geographic distribution of the Asiatic beetle.