The beetle fauna (Insecta, Coleoptera) of the Rawdhat Khorim National Park, Central Saudi Arabia.

This study was conducted as a part of a comprehensive baseline survey of insect biodiversity of Rawdhat Khorim National Park (RKNP), Central Kingdom of Saudi Arabia (KSA). During this study a total of 262 Coleoptera species belong to 182 genera in 35 families were identified, of which 247 are named at a species level. Fifteen species (6.

Biology, predation, and life table of Cydnoseius negevi and Neoseiulus barkeri (Acari: Phytoseiidae) on the old world date mite, Oligonychus afrasiaticus (Acari: Tetranychidae).

The old world date mite, Oligonychus afrasiaticus (McGregor) (Acari: Tetranychidae) is a severe spider mite pest of date palm in most of the Middle East and North Africa. Considering that nothing is known about the performance of phytoseiid predators against O. afrasiaticus, biology, predation, and life table parameters of Cydnoseius negevi (Swirski and Amitai) and Neoseiulus barkeri Hughes (Acari: Phytoseiidae), collected from date palm orchards, were studied under laboratory conditions (25, 35°C and 35 ± 10% RH) as a first step to understand their effectiveness against all mobile life stages of O.

Apterogyninae (Hymenoptera: Bradynobaenidae) from Saudi Arabia, with description of a new species.

Eleven species in three genera from Saudi Arabia are listed. Macroocula riyadha Gadallah & Pagliano, spec. nov.