The present invention provides a compound having an excellent control effect on a harmful arthropod. A compound represented by formula (I)[wherein:Q represents a group represented by Q1 or a group represented by Q2; Z represents an oxygen atom or the like;A² represents CR^4a or the like;A³ represents a nitrogen atom, CR^4b, or the like;B¹ represents CR¹ or the like;B² represents a nitrogen atom, CR^6b, or the like;B³ represents a nitrogen atom, CR^6c, or the like;G¹ represents a nitrogen atom or CR^3a;G² represents a nitrogen atom or CR^3b;G³ represents a nitrogen atom or CR^3c;G⁴ represents a nitrogen atom or CR^3d;R¹ represents a C1-C6 chain hydrocarbon group substituted with one or more substituent(s) selected from the group consisting of a cyano group and a halogen atom or the like;R² represents a C1-C6 alkyl group or the like;R^3a, R^3b, R^3c, and R^3d are identical to or different from each other, and each represent a C1-C6 chain hydrocarbon group or the like;R^4a, R⁴b, R^6b, and R^6c are identical to or different from each other, and each represent a hydrogen atom or the like; andn represents 0, 1, or 2]or an N-oxide thereof has an excellent control effect on a harmful arthropod.