The present invention relates to a compound represented by the following Formula (I) or a salt thereof, which exhibits superior insecticidal activity, acaricidal activity, and/or nematicidal activity, which exhibits superior safety, and which can be industrially-advantageously synthesized, and also relates to a formulation for controlling harmful organisms containing the same as an active ingredient. Wherein, X represents a halogeno group, a substituted or unsubstituted C1-6 alkyl group, or the like； n is an integer ranging from 1 to 3； Z represents an oxygen atom, a sulfur atom, or NR； R represents a hydrogen atom or a substituted or unsubstituted C1-6 alkyl group； A represents a benzene ring or a 6-membered heteroaryl ring； Rarepresents a substituted or unsubstituted C1-6 alkylsulfonyl group； and Rbrepresents a substituted or unsubstituted C1-6 alkyl group, and the like.本發明是有關於一種具有優異的殺蟲活性、殺蟎及/或殺線蟲活性、安全性優異且工業上可有利地合成的式（I）所表示的化合物或其鹽、以及含有其作為有效成分的有害生物防治劑。式（I）中，X為鹵基、經取代或未經取代的C1～6烷基等，n為1～3的任一整數，Z為氧原子、硫原子或NR，R為氫原子、或者經取代或未經取代的C1～6烷基，A為苯環或六員雜芳基環，Ra為經取代或未經取代的C1～6烷基磺醯基，Rb為經取代或未經取代的C1～6烷基等。
