There is rovided a noxious arthropod controlling agent containing an amide compound of formula (I):wherein R1 represents a C1-C8 chain hydrocarbon group optionally having one or more groups selected from Group A, R2 represents a hydrogen atom or the like, R3 represents a hydrogen atom or the like, R5 and R6 are the same or different, and independently represent a hydrogen atom or the like, Y represents an oxygen atom or the like, m represents 0, 1, 2, 3, 4, 5, 6 or 7, and Q represents a C1-C8 chain hydrocarbon group optionally having one or more atoms or groups selected from Group D.本發明提供一種有害節肢動物防治劑,其含有式(I)之醯胺化合物:其中R1代表隨意地具有一或多個選自群組A之基團的C1至C8鏈烴基,R2代表氫原子等,R3代表氫原子等,R5與R6是相同的或不同的,且獨立地代表氫原子等,Y代表氧原子等,m代表0、1、2、3、4、5、6或7,與Q代表隨意地具有一或多個選自群組D之原子或基團的C1至C8鏈烴基。