应用于防治荔枝蝽象的平腹小蜂Anastatus sp,在繁蜂过程中往往因寄主卵种类不同,贮存时间的长短而造成性比的极大差异。作者(1981)报导了寄主卵的大小及寄主卵胚胎发育期的不同与子代蜂性比成正相关。为探讨寄主卵的营养与性比之间的关系,本研究选用了三种对平腹小蜂性比影响较大的寄主卵测定其卵浆水分,灰分,脂肪,蛋 Anastatus sp applied to the prevention and treatment of litchi stink bug caused by the different types of host eggs, storage time length caused by the great difference in sex ratio. The authors (1981) reported that the size of the host egg and the difference in the embryonic development of the host egg are positively related to the progeny bee sex ratio. In order to explore the relationship between host egg nutrition and sex ratio, three host eggs, which had a great influence on the ratio of Baphicornis to Baphicola, were selected to test their water, ash, fat and egg