The invention relates to novel compounds of the formula (I) in which Aa, Ab, Ac, Ad, R1, R2, R3, Q and n have the definitions given above, to their use as acaricides and/or insecticides for controlling animal pests and to processes and intermediates for their preparation.本發明關於新穎的式(I)化合物其中Aa、Ab、Ac、Ad、R1、R2、R3、Q與n具有如本文中之定義,關於其作為控制動物害蟲之殺蟎劑及/或殺昆蟲劑之用途,及關於其製備之方法及中間產物。