The origin and the migration of Monochamus Guér on the earth,theorigin of Chinese Monochamus fauna and its biogeographical relation toother areas,and geographical distribution of five species which do seriousdamages to the forests in China are discussed.It is indicated as follows: (1) Monochamus is a typical tropic and subtropic group.The globaldistribution of this genus shows that 59.3% of all species are distributedin Ethiopian,26% in Oriental,8% in Neoarctic,6.7% in Palaearctic andnone in both Australian...
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