False spider mites (Trombidiformes: Tenuipalpidae) from Saudi Arabia; a new species of the genus Phytoptipalpus Trägårdh, and first records of species in the genera Obuloides Baker & Tuttle and Aegyptobia Sayed
  Repellency and toxicity of extracts from Capparis aegyptia to Tetranychus urticae Koch (Acari: Tetranychidae)