大袋蛾Clania variegata Snellen幼虫隐藏于袋囊内,只有取食或在叶面爬行时,才将头、胸伸出囊外,停息或受惊扰时即缩回囊内,用胸足紧抓囊口内壁,以防外来敌害袭击。由于袋囊质地紧密,不易拉开,因此观察幼虫生长发育、确定龄期极为困难。关于大袋蛾幼虫龄期,国内 Larvae Clania variegata Snellen larvae hidden in the bag, only feeding or crawling in the leaves, the head and chest out of the extracapsular, resting or disturbed when retracted into the capsule, with the chest and grasping catch the mouth Inner wall to prevent attacks by foreign enemies. Due to the tight bag texture, easy to pull open, so observe the growth and development of larvae, to determine the age extremely difficult. On the larvae of the big-bagged moth, domestic