水稻害虫卵的天敌种类丰富,对田间害虫的发生及消长在当代就有明显的影响,对某些害虫甚至有较大的抑制作用。正确识别和估量稻田天敌数量及其作用,对搞好害虫预测预报,指导大田防治,开展生物防治,保护有效天敌等,都有一定的积极意义。近年来,我们在福州、龙海、仙遊等地,对水稻一些害虫卵的寄生种类,数量及其效用进行了初步考查,1973～1975年共收集三化螟,二化螟卵块2,500多块,稻纵卷叶螟、稻螟蛉、稻苞虫等卵2,300多粒,分别置于室内观察及镜检剖查,现将初步考查结果,整理如下。一稻纵卷叶螟卵椭圆形,较扁平,初产为白色,后转微黄,接近孵化时,卵面一端出现黑点(幼虫头 Rice pests eggs are rich in natural enemy species, the occurrence of pests in the field and the growth and decline in the contemporary have a significant impact on some pests and even greater inhibitory effect. Correctly identifying and estimating the quantity and effect of natural enemies in paddy fields has some positive significance in improving pest forecasting, guiding field control, carrying out biological control and protecting effective natural enemies. In recent years, we carried out a preliminary examination of the parasitic species, quantity and utility of some pest eggs in Fuzhou, Longhai and Xianyou. From 1973 to 1975, we collected more than 2,500 eggs of the three rice borer, Chilo suppressalis, More than 2,300 eggs of rice leaf roller, rice borer, rice shellworm, respectively, were placed in the indoor observation and microscopic examination of the dissection, the preliminary examination results are now organized as follows. A rice leaf roller borer ovum oval, relatively flat, primiparous white, yellow turn yellow, close to hatching, the egg surface black spots at one end (larval head