Adults of Trissolcus basalis (Wollaston) were reared on Nezara viridula egg masses witch stored at 4, 8, 12 and 16^oC for different periods of storage. The percentage of parasitized eggs, successful parasitism, sex ratio, and developmental time of immature stages of T. basalis were evaluated. The results of this study showed that there were a decreased in percentage of parasitized eggs and successful parasitism of T. basalis when reared on N. viridula egg masses which stored at 12 and 16^oC. Moreover, there were a reduction with the percentage of parasitized eggs, successful parasitism and sex ratio generated with increased storage period. Furthermore, there was no effected on the percentage of parasitized eggs, successful parasitism and sex ratio for N. viridula egg masses which stored at 4 and 8^oC for 7 and 14 days compared with check. The developmental time was decreased with the increased of storage temperatures, it also increased with the increased of storage periods.