大黑金龟子(Holotrichia diomphalia Bates)幼虫叫蛴螬,通称蛭虫,大牙。该虫分布较广,除黑龙江省外,在我国的吉林、辽宁、河北、河南、山东等省局部地区均有为害,一般被害率达10—15％,发生严重时,可达30％以上,甚至毁种,是生产上威胁较大的一种地下害虫。幼虫为杂食性,除为害甜菜外,对高粱、玉米、大豆、谷子、马铃薯等多种作物都有为害。 Larvae (Holotrichia diomphalia Bates) larva called Scabies, commonly known as leprosy, large teeth. The worm is widely distributed except for Heilongjiang Province, which is harmful to some areas in Jilin, Liaoning, Hebei, Henan and Shandong provinces of China. The rate of damage is 10-15%, and in severe cases it can reach more than 30% Even ruin, is a threat to the production of a large underground pests. Larvae are omnivorous, in addition to harm beet, the sorghum, corn, soybeans, millet, potatoes and other crops are harmful.