A compound represented by formula (I), which is highly effective in controlling harmful arthropods, an intermediate thereof and a production method thereof are described. In formula (I), A1 represents CH or a nitrogen atom； R1 represents a C1-C6 alkyl group optionally having one or more halogen atoms； R5 represents CF3, C2F5, or S(O)mCF3； Q represents NR2C(O)OR3 or N═；CR4R6； R2 represents a hydrogen atom or the like； R3 represents a C1-C6 alkyl group optionally having one or more halogen atoms or the like； R4 represents a hydrogen atom or the like； R6 represents a phenyl group optionally having one or more substituents selected from group D, or the like； and n and m each independently are 0, 1, or 2. Group D: a group consisting of C1-C6 alkyl groups optionally having one or more halogen atoms and C1-C6 alkoxy groups optionally having one or more halogen atoms or the like.
