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漾濞县是全国著名的核桃产区之一,年产量350多万斤。历史上核桃扁叶甲淡足亚种Gastrolina depressa pallipes Chen曾多次猖獗成灾,1979年受灾面积达2万余亩,不仅造成核桃减产,而且由此引起天牛等次期性害虫浸入,致使一些大树枯死。1978年以来,我们对此虫作了观察和研究。 一、形态特征 成虫 体长5.3—7.1毫米,宽2.8—3.9毫米。鞘翅紫铜色或青蓝色,具有粗大点刻,纵列于翅面,有纵走棱纹,翅基部两侧较隆起,边缘有折缘。前胸背板的前后角和侧缘为棕黄色。足淡黄色,股端、胫基及跗节黑色。 卵 长卵圆形,长1.3—1.5毫米,粗0.6毫米,初产为乳白色,后至淡黄白色,顶端透明发亮。
Yangbai County is one of the famous walnut producing areas in the country with an annual output of more than 350 million jin. History of walnut flat leaf a light subspecies Gastrolina depressa pallipes Chen has repeatedly rampant disaster hit area of more than 20,000 acres in 1979, not only caused the walnut cut, and thus cause the diphtheria pests and other secondary pests, resulting in some Dead tree. Since 1978, we have made observations and studies on this pest. First, morphological characteristics Adult body length 5.3-7.1 mm, width 2.8-3.9 mm. Coleoptera copper or blue-green, with a thick moment, longitudinal in the wing surface, vertical and vertical ribs, wings on both sides of the more prominent uplift, the edge of the fold. Anterior and posterior horn and lateral margin of the front and back panels are brownish yellow. Pale yellow, femoral, tibial and tarsal black. Egg oval, 1.3-1.5 mm long, 0.6 mm thick, primiparous white, yellow to white after the top transparent shiny.