初步查明在陕西麦区寄生小麦吸浆虫的寄生蜂有１２种，其中，寄生麦红吸浆虫的５种，寄生麦黄吸浆虫的４种，２种吸浆虫均寄生的３种。寄生蜂具隔年出土......

The occurrence regularity of wheat midgec (Sitodiplosis mosellana Gehin) was investigated in 1986 -1991. One generation ......