为了适应环境求得生存、繁育后代，昆虫也和其它生物一样，形成了多种“自卫术”。常见的有以下几种：保护色：生活在青草上的蚱蜢，身穿一套绿色的“迷彩服”，跟周围环境的色彩协调一致。使天敌也难以发现。警戒色：瓢（piáo）虫又名“花大姐”，背部呈橙（chénɡ）红色， In order to adapt to the environment for survival, breeding offspring, insects and other organisms are also the same, forming a variety of “self-defense surgery.” Common are the following: Color protection: grasshoppers living in the grass, wearing a green “camouflage suit”, consistent with the color of the surrounding environment. So that natural enemies are hard to find. Caution color: scoop (piáo) insect, also known as “flower sister”, the back was orange (chénɡ) red,