PROBLEM TO BE SOLVED: To provide a novel pest control agent, especially an insecticide or an acaricide.SOLUTION: There are provided: a heterocyclic derivative represented by the formula (1) [wherein, A1 represents -N(O)m2 or -CR1 R1 represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms or the like Ra represents a hydrogen atom, a cyano or an alkyl group having 1 to 12 carbon atoms or the like Rb represents -C(O)R7b or the like R2 represents a halogen atom, an alkyl group having 1 to 6 carbon atoms or the like B represents a heterocycle of B-1 to B-34 n represents an integer of 0 to 3.] and a pest control agent.COPYRIGHT: (C)2015,JPO&INPIT【課題】 新規な有害生物防除剤、特に殺虫剤又は殺ダニ剤を提供する。【解決手段】 式(1):【化1】[式中、A1は-N(O)m2又は-CR1を表し、R1は水素原子、ハロゲン原子又はC1~C6アルキル等を表し、Raは、水素原子、シアノ又はC1~C12アルキル等を表し、Rbは、-C(O)R7b等を表し、R2はハロゲン原子又はC1~C6アルキル等を表し、BはB-1~B-34の複素環を表し、nは0~3の整数を表す。]で表される複素環誘導体及び有害生物防除剤。【選択図】 なし
