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1987年在云南省寻甸、玉溪、禄劝调查板栗象甲时发现一种鞘翅上有两个斑纹的栗实象,与文献记载的栗实象甲形态完全不同,经鉴定为二斑栗象(Curculio bimaculatus Faust),该虫系国内分布新记录。作者于1987～1989年对该虫形态、生物学特性及防治进行了研究。是国内首次对该虫较详细的研究报告。
In 1987, Xundian, Yuxi and Luquan in Yunnan Province discovered a chestnut elephant with two markings on the coleoptile, which was totally different from the documented chestnut elephant a form. It was identified as two spotted chestnut elephants (Curculio bimaculatus Faust), which is a new record in the country. The author studied the morphology, biological characteristics and control of the insect from 1987 to 1989. It is the first time in China that the pest more research report.