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金龟子小档案:分类:属于鞘翅目金龟子科。种数:全世界约30000种,中国约1300种。生活史:卵—幼虫—蛹—成虫。习性:夏季交配产卵,幼虫一般称为“蛴螬”。啮食植物根、块茎或幼苗等地下部分,为主要的地下害虫。老熟幼虫在地下作茧化蛹。金龟子为完全变化态。多在夜间活动,有趋光性。有的种类还有拟死现象,受惊后就落地装死。成虫咬食叶片成网状孔洞和缺刻,群集为害时更为严重。(缺刻:指叶子边缘上的凹陷。)
Scarab Profile: Category: Coleoptera Scarabaeidae. Number of species: about 30,000 species in the world and about 1,300 species in China. Life history: eggs - larvae - pupae - adults. Habits: Summer mating spawning, larvae generally known as “蛴 螬 ”. Giving plant roots, tubers or seedlings and other underground parts, as the main underground pests. Mature larvae cocoon pupation in the ground. The chafer is completely changed. More activities at night, there is phototropism. There are some species to die, after being shocked dead floor. Adult bite the leaves into mesh-like holes and nicks, cluster damage more serious. (Notch: A depression on the edge of a leaf.)