The predacious mite Typhlodromips swirskii (Athias-Henriot) successfully developed to the adult stage when fed on the
motile stages of the mango bud mite Aceria mangiferae Sayed, the mango rust mite Metaculus mangiferae (Attiah), the
leaf coating mite Cisaberoptus kenyae Keifer and nymphs of the mango red mite Oligonychus mangiferus (Rahman and
Sabra) in the laboratory at different temperatures and relative humidities. The increase of temperature degree and
decrease relative humidity from 25°C and 60% R.H. to 30°C & 55%R.H. and 35 °C & 50 %R.H. shortened
development and increased reproduction and prey consumption. Different eriophyid prey species promoted faster
development of the predator compared to feeding on the tetranychid nymphs. The rate of egg laying (2.62, 2.23, 2.35
and 1.83 eggs/♀/day) was recorded at the highest temperatures and lowest R.H., while the minimum reproduction (1.92,
1.72, 1.62 and 1.20 eggs/♀/day) was noted at the lowest temperature and highest R.H. when fed on the four
aforementioned prey species, respectively. Life table parameters indicated that feeding T. swirskii on A. mangiferae led
to the highest reproduction rate (rm = 0.216 and 0.157 females/female/day), while feeding on O. mangiferus gave the
lowest reproduction rate (rm= 0.183 and 0.133) nymphs at 35°C and 50%R.H. and 25°C and 60% R.H., respectively.
The adult predatory female consumed an average of 117.8 A. mangiferare, 114.18 C kenyae, 94.4 M. mangiferae motile
stages and 14.58 O. mangiferus nymphs at 35°C and 50% R.H./day, while it devoured 102.8, 96.59, 90.44 and 12.35
individuals, respectively at 25°C and 60% R.H. The three eriophyid mango mites, particularly A. mangiferae, proved to
be suitable prey for T. swirskii, as a facultative predator, compared to the tetranychid mango mite.