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2003年4月在陕西乾县漠西乡南白村苹果园,采集到一种寄生在苹果树叶背面的害虫及其卵袋,经西北农林科技大学果树研究所谌有光研究员
In April 2003, a pest and its egg bag parasitized on the back of apple leaves were collected from Nanbacun apple orchard in Moxi town, Moxi County, Shaanxi Province. After researcher Chen Youguang from Fruit Tree Research Institute of Northwest A & F University