PROBLEM TO BE SOLVED: To provide a composition having excellent control effect on harmful arthropods.SOLUTION: The present invention provides a composition that shows excellent control effect on harmful arthropods and contains a compound represented by formula (I) or a salt thereof and an inert support. [R1 is a C1-C8 chain hydrocarbon group, a C3-C7 cycloalkyl group, a phenyl group, a 5-10 membered heteroaryl group or a 3-7 membered saturated heterocycle group or the like G1 is CH, C(CH3) or C(CN) G3 is a single bond or CR4R5 G4 is a single bond or CR6R7 G5 is a single bond or CR8R9 G6 is a single bond or CR10R11 G7 is a single bond or CR12R13 G2 is CR2R3 R2-R13 independently represent halogen, nitro, cyano, alkyne, aryl or the like and X is H or a C1-C3 alkoxy group and the like].SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】有害節足動物に対して優れた防除効力を有する組成物の提供。【解決手段】有害節足動物に対して優れた防除効果を示す式(I)で示される化合物又はその塩と不活性担体とを含有する組成物。〔R1はC1-C8鎖式炭化水素基、C3-C7シクロアルキル基、フェニル基、5-10員ヘテロアリール基又は3-7員飽和へテロ環基等;G1はCH、C(CH3)又はC(CN);G3は単結合又はCR4R5;G4は単結合又CR6R7;G5は単結合又はCR8R9;G6は単結合又はCR10R11;G7は単結合又はCR12R13;G2はCR2R3;R2~R13は各々独立してハロゲン、ニトロ、シアノ、アルキン、アリール等;XはH又はC1-C3アルコキシ基等〕【選択図】なし