稻瘿蚊(Orseolia oryzae)的寄主范围不广,成虫飞翔扩散能力不强,是典型的区域性害虫。自幼虫进入越冬到次年成虫羽化,长达5个多月,这个时期的虫源状况是当年发生期、发生量预测预报的主要依据之一。作者于1978—1985年,在进行对该虫的抗性研究过程中,采集和保存了大量供试虫源,并对该虫冬 Orseolia oryzae host range is not wide, the ability of adult fly proliferation is not strong, is a typical regional pests. Since the larvae entered the winter to the emergence of adult feathers the following year, up to more than five months, the status of the source of insects in this period is the occurrence of the current year, the occurrence of one of the main basis for forecasting. During 1978-1985, a large number of test insect sources were collected and preserved during the study of resistance to the insects.