豆毒蛾幼期形态学及其习性研究  

Morphological Characters and Habits of Cifuna locuples Walker at Early Stages

作　　者：刘媛媛[1] 魏永路[1] 李肇星[1] 黄国华[1] 

机构地区：[1]湖南农业大学生物安全科学技术学院,长沙410128

出　　处：《长江蔬菜》2012年第16期114-117,共4页Journal of Changjiang Vegetables

基　　金：国家公益性行业(农业)科研专项经费项目"水生蔬菜产业技术体系研究与示范"(200903017);湖南农业大学"大学生创新性实验计划项目"(XCX12048)

摘　　要：以莲藕叶为寄主,对豆毒蛾幼期形态学及其习性进行了系统观察。结果表明,其卵圆形,中间凹陷,初产时为鲜绿色,逐渐变为紫红色,直至乳白色;幼虫共6龄,腹部前4节背板上长有棕褐色短毛簇,前2节背板两侧各有1对长毛簇,当受侵扰时,1~4龄幼虫迅速吐丝,身体蜷缩悬挂于附着物上,5~6龄幼虫则依靠快速爬行和坚硬的毒毛保护自己;蛹初化时为鲜绿色,随后变为红棕色,背部具瘤状突起和灰白色绒毛,触碰时,腹部可自由摆动;雄成虫触角羽毛状,雌成虫触角双栉齿状,静止时,前足向前与体躯成一条直线,中足与体躯垂直,具趋光性。In this paper, the morphological characteristics and habits of the early stages of Cifuna locuples Walker were observed and described by taking Nelumbo nucifera Gaertn. as its host plant in laboratory. The resuhs showed that its eggs were round and depressed in the middle, the newly eggs were bright green at first, then became purple red, and finally turned into creamy white. The larva instar was 6, and the lst-4th instar larvae rapidly hung on the attachments with silk, while the 5th-6th instar larvae protected themselves by rapidly crawling and hard poisonous seta. The pupae were bright green at first and then became red brown, and once been touched, its abdomen could swing freely. The antenna was bipectinate in female adults and pectinate in male adults, and the adults front legs were forward and in a straight line with the body, while the middle legs were perpendicular to the body when they were at rest.

关 键 词：豆毒蛾 幼期 形态学特征 习性 

分 类 号：S433.4[农业科学—农业昆虫与害虫防治]