1992年笔者在辽宁省的凤城烟田发现了一种寄生在烟蚜上的绒螨。经室内制片、鉴定,确认该螨为无视异绒螨(Allothrombiumignotum Willmann)。在国内虽有该螨寄生于蚜虫体的报道,但明确提到寄生在烟蚜上尚属首次。在辽宁凤城,幼螨始见于六月初,六月中下旬达到数量高峰。一般每头蚜虫上寄生1～2头螨,有些可达3～4头,最多一头蚜虫 In 1992, I found a mite mite parasitized on aphids in Fengcheng, Liaoning Province. The indoor preparation, identification, identification of mites to disregard Iris (Allothrombiumignotum Willmann). Although the mite parasites in the body of aphids reported, but made it clear that the parasitic on the aphids is the first time. In Fengcheng, Liaoning, larvae started to appear in early June and peaked in late June. Generally 1 to 2 parasites on each aphid parasites, some up to 3 to 4, up to a head of aphids