The fused heterocyclic compound represented by formula (1) has excellent effectiveness in pest control. (In the formula, J represents formula J1, J2, J3, J4, J5 or J6 A1 represents a nitrogen atom, etc. A2 represents a nitrogen atom, etc. A3 represents a nitrogen atom, etc. A4 represents a nitrogen atom, etc. A5 represents a nitrogen atom, etc. B1 represents a nitrogen atom, etc. B2 represents a nitrogen atom, etc. B3 represents NR15, etc. B4 represents a nitrogen atom, etc. B5 represents a nitrogen atom, etc. B6 represents a nitrogen atom, etc. R1 represents a C1-C6 chain hydrocarbon group, etc., optionally having one or more atoms or groups selected from group X R2 and R3 are the same or different, and represent a C1-C6 chain hydrocarbon group, etc., optionally having one or more atoms or groups selected from group X R4 represents a C1-C6 chain hydrocarbon group, etc., optionally having one or more atoms or groups selected from group W R5 and R6 are the same or different, and represent a C1-C6 chain hydrocarbon group, etc., optionally having one or more atoms or groups selected from group X and n represents 0, 1,2).
