黄条跳甲

鞘翅目 叶甲科（Ｃｈｒｙｓｏｍｅｌｉｄａｅ）昆 黄曲条跳甲虫的一属.中国已知的种类在１０种以上.体小，长椭圆形，黑色，常有 金属光泽，鞘翅具黄色纵条纹，善跳.对 十字花科蔬菜为害严重的有４种：如 黄宽条跳甲（Ｐ.ｈｕｍｉｌｉｓ），长９ｍｍ左右.头胸部黑色光亮，腹面黑色.每鞘翅具１极宽大的黄色纵条纹，几乎成直条，其最狭处亦占翅宽一半有余，而从肩部以下最宽，向后渐狭.触角之间高耸，触角褐色，末端数节色深，约伸达鞘翅中部；第５节触角较长，２—４节及第６条长度相近. 黄直条跳甲（Ｐ.ｒｅｃｔｉｌｉｎｅａｔａ），体长形，长２２—２８ｍ。极光亮，似有金属光泽.触角基部及各足胫、B跗节棕红色.鞘翅中央的黄色纵纹直而较狭，不及翅宽的１E３，纵纹中部外侧具很浅的弯.黄曲条跳甲（Ｐ.ｓｔｒｉｏｌａｔａ），长１８—２４ｍ。鞘翅的黄色纵级在外侧中部具深凹，内侧具线B凹. 黄狭条跳甲（Ｐ.ｖｉｔｕｌａ），体长不到２ｍ，头、胸部黑而有绿色金属光泽，黄纵仅有翅宽１３。成虫食菜叶，是苗期E大害虫，还传播白菜 软腐病.Coleoptera Chrysomelidae (Chrysomelidae) Kun Huang a striped flea beetle genus. Chinese species known to more than 10. Body is small, long oval, black, often metallic luster, elytra with a yellow vertical stripes, good jump. serious damage to the cruciferous vegetables are four kinds: such as Huang Kuan striped flea beetle (P.humilis), length of about 9mm. shiny black head and thorax, ventral surface black. Each elytra with a very wide yellow vertical stripes, al most into the straight, at its most narrow and also accounted for more than half of the fin width, and from the shoulders of the most wide and gradually narrow back. feeler between the towering, antennae brown, the end of several sections in color depth, some stretching over Coleoptera Central; Article 5 antennae longer ,2-4 and section 6 of similar length. Huang straight striped flea beetle (P.recti lineata), body length-shaped, long 22-28m. A very bright, seems to be metallic luster. Antennal base of the foot and the tibia, B tarsus brown. Elytra yellow central straight vertical grain and less narrow, less than wings wide 1E3, vertical grain with a very shallow central lateral bending. Huang striped flea beetle (P.striolata), length 18-24m. Elytra yellow with the central longitudinal furrow at the outer level, inside a line of B concave. Yellow narrow-striped flea beetle (P.vitula), body length less than 2m, head, chest, black and metallic green sheen, yellow vertical only wing width 13. Adults eat leaves, is E-seedling pests, but also dissemination of Chinese cabbage soft rot.