麦园蜘蛛(Penthaleussp)属蛛形纲(Arachnida)蜱螨目(Acarina)叶爪螨科(Penthaleidae)。該虫在我国分布广,为害重,是小麦栽培地区的重大害虫之一。特別是山西晋南地区的960万亩麦田中,几乎都有不同程度的为害。受害的小麦生长矮小細弱,不整齐,叶面呈現白色斑点,干燥而无光泽,全叶枯黄,先端枯焦,甚至不能抽穗干枯死亡,严重的影响了产量。比如五九年3月下旬在运城于乡公社王村管理区張坊村的一块 Penthaleussp belongs to the genus Arachnida, Acarina, Penthaleidae. The worm is widely distributed in our country, a heavy burden, is one of the major pests in the wheat cultivation area. Especially in the 960 million mu of wheat fields in Shanxi’s Shanxi Province, almost all have different degrees of damage. Damaged wheat growth short and weak, irregular, the leaves appear white spots, dry and dull, full leaf yellow, the first dry coke, and even can not dry heading death, seriously affecting the yield. For example, one of the villages in Zhangfang Village, Wangcun Management District, Yuncheng, in late March,