The present invention provides a compound having an excellent efficacy for controlling pests. A tetrazolinone compound of a formula (1): [wherein Q represents a group selected from the following group: Q1, Q2, Q3 or Q4: R 1, R 2 R3 and R11 represent independently of each other a halogen atom, an CI-C6 alkyl group, etc.； R 4 and R 5 represents independently of each other a hydrogen atom, a halogen atom or an C i-C3 alkyl group, etc.； R6 represents an C2-C4 alkynyl group or a C3-C6 cycloalkyl group, etc.； R7 R8 and R9 represent independently of each other a hydrogen atom, a halogen atom, etc.； R10 represents an C1-C3 alkyl group, etc.； and X represent an oxgen atom, etc.] shows an excellent controlling efficacy on pests.
