22233An ester compound represented by formula (1): wherein Q represents N(CHC=CH) CH C*(=O) or N(CHC=CH) C(CH)=N* (where * represents a binding position with N atom being adjacent to a carbonyl group) R represents a C1 C4 alkyl group and a relative configuration between the substituent at the 1 position of the cyclopropane ring and the substituent at the 3 position of the cyclopropane ring is a trans configuration has an excellent pest control effect.