1990年和1991年5月份,在保定郊区调查条锈病的病情时,发现一种约2mm的红色小虫,以小麦条锈菌的夏孢子为食。经其取食,锈菌病斑由鲜黄变成枯黄。幼虫在叶片正面主脉附近结茧化蛹,竖向排列,也有少数茧分散在叶的其它部位。 经河北农业大学植保系季正端教授初步鉴定到属是瘿蚊科的Mycophila sp.种名尚未确定,暂称食菌瘿蚊。 1990年5月初,发现食菌瘿蚊的数量越来越多时,结合对条锈病病情的记载对其数量进行了调查。从5月12日开始,每隔4—5 In 1990 and May 1991, in the suburbs of Baoding in the investigation of the condition of stripe rust, a red insect of about 2 mm was found, feeding on the summer spores of the wheat stripe rust. After its feeding, rust spots change from yellow to yellow. Larvae cocoon pupation in the main vein near the front of the leaf blade, vertical arrangement, but also a few cocoon scattered in other parts of the leaf. Professor Ji Zhengdu from Plant Protection Department of Hebei Agricultural University initially identified that Mycophila sp. Is a species of Mycophila sp. In early May 1990, when the number of mosquitoes was found to be increasing, the number of stripe rust diseases was investigated in connection with its record. Starting from May 12, every 4-5