蔗扁蛾Opogona sacchari (Bojer)是一种新传入我国的重要检疫害虫,给花卉生产、园林绿化和华南的经济作物生产造成严重威胁。该虫属鳞翅目Lepidoptera,辉蛾科Hieroxestidae,扁蛾属Opogona,广谱钻蛀性贪食者,已记载的寄主植物达22科49种,其中主要包括一些名贵观赏植物如巴西木[香龙血树Dracena fragrans(L.)]、发财树和经济作物如甘蔗、香蕉等。该虫在南美巴巴多斯为害甘蔗的程度超过蔗螟Diatraea saccharalis,在非洲加那利群岛对香蕉造成毁灭性为害。因此,许多国家将其列为重要的检疫对象。我国1997年正式报道在北京发现此虫,虫源是广州北运的巴西木。笔者在广州及其附近县市的初步调查表明,该虫除主要为害巴西木和发财树外,其寄主范围已扩大至 Opogona sacchari (Bojer) is a newly introduced important quarantine pest in our country, which poses a serious threat to flower production, landscaping and the economic crop production in South China. The Lepidoptera, Lepidoptera, Hieroxestidae, Opogona and Broad-band moth-boring bulimia have recorded 22 host families and 49 species of host plants, including some valuable ornamental plants such as Brazil woody [ Dracena fragrans (L.)], Pachira and cash crops such as sugar cane, bananas and the like. The insects in Barbados, South America more than sugarcane damage than the sugarcane borer Diatraea saccharalis, banana in the Canary Islands in Africa caused devastating damage. Therefore, many countries have listed it as an important quarantine object. China formally reported in 1997 that this insect was found in Beijing. The insect source was Brazilian wood from Guangzhou Beiyun. The author’s preliminary investigation in Guangzhou and its neighboring counties and cities showed that, apart from its main damage to Brazil wood and Pachira, the host range of this insect has been extended to