none Enter Life history of the parasitoid species, Habrobracon hebetor Say (Hymenoptera: Braconidae) was studied in the laboratory when parasitizing larvae of Cadra cautella (Walker) (Lepidoptera: Pyralidae) infesting stored date fruits. Mean adult longevity was 7.9 and 6.6 days for female and male, respectively. Pre-ovopositional and ovipositional periods lasted < 12h and 7.4 days, respectively. Total number of eggs/female was 69.3 eggs, with a mean of 9.45 eggs/day. Mean durations of immature stages reached 14.99 hrs, 2.48 and 5.65 days for egg, larval and pupal stages, respectively. Egg hatchability, pupation and adult emergence recorded more than 95%. The larvae of H. hebetor could externally parasitize all larval instars of C. cautella. However, the parasitoid preferred late larval instars of C. cautella. Parasitism rate was significantly different among the instars.