The present invention provides a pest controlling composition containing a compound of the formula (1) wherein A1, A2, A3, R1, R2, R3, R4, R5, R6 and n are as defined in DESCRIPTION, or an N-oxide thereof; and one or more compounds selected from Group A to Group E: Group A; fungicides, Group B; insecticides, Group C; acaricides, Group D; chemical injury reducing agents, and Group E; plant growth regulators. The pest controlling composition of the present invention exhibits an excellent effect of controlling pests.