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In this study some biological properties of stored Trichogramma pintoi Voegele were studied. Parasitized eggs by T. pintoi using Ephestia kuehniella Zell held at 0,4 and 8°C for up to 6 weeks was measured. Studies have been conducted within a 25±1°C temperature % 60-70 relative humidity and 16 hours light 8 hours dark periods per day. In conclusion of the carried observations, low temperature and storing period have an effect on the development period of the stored parasitized Ephestia kuehniella eggs, emergence rate, adult female parasitoids lifetime, the number of the parasitized eggs and blackening of the parasitized eggs. Although the data obtained from the studied biological characteristics are very close to each other, the performance has been monitored high in storing +8°C temperature compared to 0 and +4°C temperatures. A fall has been observed in all of the biological characteristics when the period of storing is extended. The highest performance is identified in first week at the all three temperature degree. [ABSTRACT FROM AUTHOR]