PROBLEM TO BE SOLVED: To provide a novel compound having a control efficacy on harmful arthropods.SOLUTION: There is provided a harmful arthropod controlling agent including an amide compound represented by formula (I) and an inactive carrier. In the formula, A represents a 3 to 7-membered saturated heterocycle t is 0 Rand Rare same or different from one another, and represent H or a C1 to 6 alkyl group that may have halogen atoms n is 0 Z represents N or C X, X, and Xeach are same or different from one another and represent N, D, S, CRor NR Rand Rare same or different from one another, and represent H, a halogen atom, a cyano group, a formyl group, a carboxyl group, and the like m is 0 to 2 Q represents a C1 to C8 chain hydrocarbon group which may have various functional groups or one group selected from various functional groups Y represents a single bond, O or -S(O)- u is 0 to 2.
