The invention relates to: novel condensed bycyclic heterocyclic-compound derivatives of formula (I), wherein Aa, Ab, Ac, Ad, Ae, R1, Q and n have the above-mentioned meanings; agrochemical formulations containing the compounds according to formula (I); and the use thereof as acaricides and/or insecticides for controlling animal pests, primarily arthropods, and particularly insects and arachnids.