中华卵索线虫Ovomermis sinensis Chen广泛寄生于粮、棉、油等多种作物害虫体内,生防潜力极大,但其体外培养尚未获得成功[1],阻碍了该线虫生物杀虫剂的开发与应用,因此,对线虫寄生期生长机制的研究具有重要意义。目前,对中华卵索线虫寄生后宿主血淋巴的相关研究主要集中在营养成分、生化物质等方面。王茂先等[2]对该线虫感染棉铃虫 Ovomermis sinensis Chen is widely parasitized in crops, insects and pests such as grain, cotton and oil, and has great potential of biocontrol. However, its in vitro culture has not been successful [1], hindering the development of this insecticide Therefore, it is of great significance to study the growth mechanism of parasitic nematodes. At present, the research on the host hemolymph of parasitoid Nematode parasitoid mainly concentrates on the aspects of nutrients, biochemical substances and so on. Wang Mao et al [2] Infected by the nematode cotton bollworm