【目的】 井上蛀果斑螟Assara inouei Yanmanaka是为害云南石榴的重要蛀果害虫，本研究主要明确该虫生长发育和繁殖等生物学特性。【方法】 在室内条件下，对井上蛀果斑螟的发育历期、存活率、蛹重、性比、寿命和繁殖力等特性进行了系统研究。【结果】 在温度25℃、相对湿度（RH）70%、光周期15L∶9D条件下，井上蛀果斑螟卵、幼虫、蛹、成虫的发育历期分别为6.58、18.64、6.21、13.81 d，完成一个世代需35.93 d；卵孵化率、幼虫存活率、化蛹率和羽化率分别为44.57%、64.02%、86.72%和96.48%，世代存活率为32.49%；雌蛹重16.85 mg，雄蛹重13.36 mg，雌雄蛹性比为1.37∶1；蛹羽化盛期为化蛹后第6至第8天；井上蛀果斑螟产卵前期为1.94 d，产卵期为6.84 d，雌虫平均寿命为14.88 d，雄虫平均寿命为12.74 d；不同性比结构下，单雌平均产卵量在31.24~118.34粒之间波动，以雌雄比为6︰4时，单雌平均产卵量最高。相同雌雄比下，RH为70%时，25℃下的单雌产卵量明显高于22℃；25℃时，RH为70%下的单雌产卵量明显高于RH为50%。【结论】 确定了井上蛀果斑螟主要生物学特性；性比及温湿度对井上蛀果斑螟的繁殖有显著影响。这些结果可为井上蛀果斑螟的人工饲养和科学防控提供基础资料。

[Objectives]  To clarify the growth, development and reproduction of Assara inouei Yanmanaka, an important pest of pomegranate fruits in Yunnan province. [Methods]  The developmental duration, survival rate, pupal weight, sex ratio, longevity, and fecundity, of A. inouei were systematically observed under laboratory conditions. [Results]  The developmental duration of the eggs, larvae, pupae, and adults, of A. inouei at 25℃, a relative humidity of 70% and a photoperiod of 15L∶9D, was 6.58, 18.64, 6.21 and 13.81 d, respectively, and that of a complete generation was 35.93 d. The hatching, larval survival, pupation, and emergence rates were 44.57%, 64.02%, 86.72% and 96.48%, respectively, and the generational survival rate was 32.49%. Female and male pupal weights were 16.85 mg and 13.36 mg, respectively. Female and male pupae had a sex ratio of 1.37∶1. Peak pupal eclosion was 6 to 8 d after pupation. The duration of the pre-oviposition and oviposition periods were 1.94 d and 6.84 d, respectively. The average longevity of female and male adults was 14.88 d and 12.74 d, respectively. Under different female: male sex ratios, the average number of eggs laid per female ranged from 31.24 to 118.34. The highest number of eggs laid per female was recorded at a sex ratio of 6∶4. The average number of eggs laid per female at 25℃ was significantly higher than at 22℃, and the average number of eggs laid per female at a relative humidity of 70% was significantly higher than at a relative humidity of 50%. [Conclusion]  Sex ratio, temperature and humidity have a significant impact on the fecundity of female A. inouei. These results provide basic information for the artificial rearing, prevention, and control of this pest.