棉蝗Chondracris rose&rosea (De Geer)是棉蝗属Cho-dracris在我国仅知的种,分布于内蒙、河北、山东、陕西、四川、湖南、湖北、江苏、浙江、福建、广东、广西、台湾等省区;为害棉花、甘蔗、稻及豆类。自1974年以来,在广东省海南岛西部沿海的木麻黄林内,发现犬面积为害。致使成片木麻黄林枝叶被吃光或死亡。我们自1978年起,在对该虫生物学特性及防治方法进行研究的同时,为便于防治上识别龄期,结合室内饲养,对棉蝗蝻期各龄外部形态的变化进行了观察,现整理如下,以供参考。 Chondracris rose & rosea (De Geer) is the only known species of Cho-dracris in China, distributed in Inner Mongolia, Hebei, Shandong, Shaanxi, Sichuan, Hunan, Hubei, Jiangsu, Zhejiang, Fujian, Guangdong, Guangxi and Taiwan. Provinces; damage cotton, sugar cane, rice and beans. Since 1974, in the Casuarina forest along the western coast of Hainan Island in Guangdong Province, dog areas have been found to be detrimental. Resulting in a piece of Casuarina forest leaves were eaten or died. Since 1978, we studied the biological characteristics of pests and methods of prevention and treatment, at the same time, in order to facilitate the prevention and control of the identification of age, combined with indoor feeding, the changes of the external morphology of the cotton locust period were observed, are now organized as follows ,for reference.