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四纹丽金龟(虫甲)(Popillia—quadrigutta-ta Fab.)是我区蛴螬类的优势种。我们于1978、79年在旬邑县唐家农场采用室内饲养与田间调查相结合的方法,对其生活习性、发生规律作了初步观察。一、分布与寄主:四纹丽金龟(虫甲)在我区各地均有发生。其发生量占蛴螬类的比率是,渭北半山半塬区为70.8%,南部的咸阳塬区为55.2%,泾惠灌区的泾阳县为31.16%。寄主植物有玉米、大豆、高粱、谷子、糜子、洋芋、棉花、向日葵、黄花、丝瓜、杨、榆、苹果和葡萄等。成虫尤喜取食小杨树、苹果等果树的叶片。
Populi (quadratus) (Popillia-quadrigutta-ta Fab.) Is the dominant species in our area. In 1978, 79, we used the combination of indoor feeding and field survey in Tangjia Farm of Xunyi County to make a preliminary observation of the living habits and the regularity. First, the distribution and host: Four grain Li beetle (insect A) occurred in our region all over. The ratio of occurrences to 蛴 螬 class is 70.8% in Weibei semi-mountain highland, 55.2% in Xianyangyuan area in the south and 31.16% in Jingyang county in Jinghui irrigation area. The host plants are corn, soybean, sorghum, millet, millet, potato, cotton, sunflower, yellow flower, sponge gourd, poplar, elm, apple and grape. Adults prefer to eat poplar, apple and other fruit trees leaves.