This study was carried out under laboratory conditions at 25±2°C and 65±5% R. H.  Chrysoperla carnea (Steph.) larvae in the experiments was fed on pistachio psylla nymphs (Agonoscena pistaciae Licht.) and Mediterranean moth eggs (EphestiakuehniellaZeller; Lepi.: Pyralidae). Results showed that the incubation period  was equal in all treatments, without significant differences. Significant differences were found among tow treatments in larvae development period. It was 13.69±0.49 and 10.89±0.18 days when fed on pistachio psylla nymphs and E. kuehniella eggs respectively. The results indicated significant differences in the predator`s pupae development period. It was 7.90±0.23 and 8.28±0.11 days, respectively. Total development period from egg to adult  showed significant differences among tow treatments, it  lasted 26.10±0.43 and 24.17±0.15 days, respectively. Fecundity of C. carnea females was differ dependence on prey type. It was 151.97±12.24 eggs, when the predator larvae were fed on pistachio psylla nymphs, while it was higher (194.40±12.43 eggs) with a significant difference when the larvae were fed on E. kuehniella eggs.