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-C
