大袋蛾Cryptothelea variegata Snellen是我国华东、中南地区林木和行道树的主要害虫之一。其幼虫危害二百多种树木,取食叶片、环食顶梢嫩皮,严重影响林木生长及城市绿化。目前常用化学防治法,花工多,效果有限,还有不良后果。因此,需寻找新的防治措施。伞裙追寄蝇Exorista civilis Rondani是大袋蛾幼虫的主要寄生天敌,自然寄生率 Cryptothelea variegata Snellen is one of the major pests of trees and road trees in East China and South Africa. Its larvae jeopardize more than 200 kinds of trees, feeding on leaves and feeding the tops of the tender skin, seriously affecting the growth of trees and urban greening. At present, commonly used chemical control methods, flower workers and more limited effect, as well as adverse consequences. Therefore, we need to find new prevention and control measures. Exorista civilis Rondani is the main parasitic natural enemies of larvae of the moth, the natural parasitic rate