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卵寄生蜂是褐飞虱的重要自然天敌。本文从稻田周围禾本科杂草上收集到飞虱卵寄生蜂29种，但能寄生褐飞虱卵的寄生蜂只有20种，分属2个科，7个属。其中缨小蜂科11种、赤眼蜂科9种。缨小蜂占卵寄生蜂总数的82．4％～97．6％，而赤眼蜂只占小部分。
Egg parasitoids are important natural enemies of BPH. In this paper, 29 species of parasitoids were collected from grass weeds around rice fields, but there were only 20 species of parasitoids that could parasitize N. lugens eggs, belonging to 2 families and 7 genera. There are 11 species of Smalltishidae and 9 species of Trichogramma. Tassel wasp accounted for 82.4% ~ 97.6% of the total parasitoid eggs, while Trichogramma was only a small part.