Abstract:
Life history characteristics of the predator, Xylocoris flavipes reared under four regimes of RH (30, 50,
70 and 90%) on two hosts, Tribolium castaneum and T. confusum fed on three artificial diets, were
studied. There were significant effects (P<0.001) of relative humidity on the oviposition period,
fecundity, hatchability, developmental time, percentage mortality of immature stages and progeny/
female of the predator on both the hosts. Most of the cases the optimum level of relative humidity was
recorded at 70%.