白纹尺蝽Hgdrometra albolineata(Scott)属半翅目尺蝽科,是稻飞虱、叶蝉捕食性天敌之一,某些地区田间密度相当大,每亩可达4～5万头,在水面捕食稻飞虱、叶蝉,对稻飞虱、叶蝉的发生量起到一定的控制作用,应属保护对象之列。在国内未见有关此天敌生物学特性的详细记述,现将过去几年饲养观察结果梗概于后,以扩大保护利用天敌的视野。 Hgdrometra albolineata (Scott) is a member of the family Hemiptera, which is one of the predatory natural enemies of planthoppers and leafhoppers. In some areas, the density in the field is quite high, ranging from 40,000 to 50,000 heads per acre. Prey on planthoppers, leafhoppers, the occurrence of planthoppers, leafhoppers play a role in controlling, should be protected. No detailed account of the biological characteristics of this natural enemy has been reported in the country, and the observations of the past few years have been summarized in order to expand the field of vision for the protection and utilization of natural enemies.