An amide compound represented by formula (I): [wherein A represents a 3- to 7-membered saturated heterocyclic ring which contains, as ring-forming component(s), one or more atoms or groups selected from the group consisting of an oxygen atom and -S(O) t -, t represents 0, etc., R 1 and R 2 are the same or different and represent a hydrogen atom, etc., n represents 0, etc., the following formula (II): represents a 5-membered aromatic ring, in which Z represents a nitrogen atom or a carbon atom and X 1 , X 2 and X 3 are the same or different and represent a nitrogen atom, etc., R 3 and R 4 are the same or different and represent a hydrogen atom, etc., m represents 0 to 2, Q represents one group selected from group A or a C1 to C8 chain hydrocarbon group optionally having one group selected from group A, Y represents an oxygen atom, etc. , u represents 0, etc., and v represents 0, etc.] has excellent arthropod pest controlling effects.式(I)所示之醯胺化合物具有優異之有害節足動物防除效果,[式中,A表示包含選自由氧原子及-S(O)t-所組成之群中之1個以上之原子或基作為環構成成分之3~7員飽和雜環,t表示0等,R1及R2相同或不同,表示氫原子等,n表示0等,下式(II)表示5員芳香環,Z表示氮原子或碳原子,X1、X2、及X3分別相同或不同,表示氮原子等,R3及R4相同或不同,表示氫原子等,m表示0~2,Q表示選自群A中之1個基或可具有選自群A中之1個基之C1~C8鏈式烴基,Y表示氧原子等,u表示0等,v表示1等]。