Predaceous insects and mites are important biological control agents of the two spotted spider mite Tetranychus urticae Koch. Biology and life table parameters of Stethorus gilvifrons Mulsant, Phytoseiulus persimilis A.-H., Neoseiulus cucumeris (Oud.), Typhlodromips swirskii (A.-H.) and Euseius scutalis A.-H. fed on T. urticae immature was studied at 28 ±1°C. Their female life cycle and life span averaged 17.66, 5.80, 4.40, 6.26 & 6.26 days and 47.60, 19.13, 38.00, l3.20 & 23.93 days, respectively. During its life span, average female fed on 1647. I 3, 343.53, 353.53, 345.66 & 200.33 with a daily rate 34.60, I 7.96, 9.30, 8.00 and 8.37 T. urticae immature respectively. The net rate of natural increase (r_m) and the finite rate of increase (λ) of the aforementioned predators were 0.139, 0.294, 0.349, 0.26 I & 0.229; and 1.15, 1.34, 1.41, 1.29 & 1.25, respectively. These of T. urticae were 0.222 and 1.24, respectively.