A. swirskii heavily preyed on B. tabaciand thrips in the greenhouse experiments (Figs. 3 and 4). The first experiment (against thrips complex) indicated that A. swirskii, reared on ornamental pepper plants, showed significant suppression of the population of the thrips complex (excluding eggs, because of the difficulty in counting eggs in the greenhouse by magnifier) infesting the green bean plants (t= 7.87; df=8;P= 0.001). The number of thrips complex in the treatments was only 13.4 per plant (based on total leaves) compared to 235.4 per plants in the control