Hypoaspis aculeifer (Canestrini) is a polyphgous mite and plays an important role in natural control of terricolous insects, mites, nematodes and fungus. Immature and adult survival and stadia as well as daily fecundity of this predator were examined in germinators at 11 constant temperatures (15, 16, 17.5, 20, 22.5, 25, 27.5, 30, 32.5, 33.5, and 35 °C), relative humidity of 60 ± 5 % and photoperiod of 16:8 hours (light:dark) feeding on bulb mite, Rhizoglyphus echinopus (Fumouze and Robin), as prey. The demographic parameters were analyzed using the age-stage, two-sex life table with bootstrap technique. The extremes of gross reproductive rate (GRR) were reached at 16 °C and 30 °C to be 5.77 and 71.48 offspring, respectively. The net reproductive rate (R0) was 0.91, 14.67, 21.87, 24.87 and 32.38 offspring at 16, 20, 22.5, 27.5 and 30°C, respectively; however, it extremely decreased to 6.72 offspring at 32.5˚C. The mean generation time (T) decreased significantly by increasing temperature from 16 °C (63.74 days) to 30 °C (13.78 days) and then increased to 16.70 days at 32.5 °C. The finite rate (λ) were calculated to be the lowest at 16 °C (0.997 day–1) and the highest at 30 °C (1.286 day–1) followed by a decline to 1.116 day–1 at 32.5 °C. The intrinsic rate of increase (r) values ranged from -0.002 day– 1 at 16 °C to 0.252 day–1 at 30 °C. This study indicated that H. aculeifer can be successfully reared on R. echinopus at 30 °C to be applied in biological control programs.
