The present invention relates to a composition for an aerosol for controlling a flying-insect pest exhibiting an excellent controlling effect on a flying-insect pest, more specifically a composition for an aerosol for controlling a flying-insect pest, comprising a) at least one pyrethroid compound of formula (1): wherein Ra represents a hydrogen atom, a halogen atom or a methyl group, Rb represents a halogen atom, a methyl group, a trifluoromethyl group or a cyano group, and Rc represents a hydrogen atom, a methyl group, a propargyl group or a methoxymethyl group； b) a monoalcohol compound of formula (2): HO-X (2) wherein X represents an alkyl group having 2 to 4 carbon atoms； c) a hydrophobic organic solvent； and d) a propellant.本發明乃有關用於防制飛行害蟲之氣溶膠的組成物，該組成物對飛行害蟲顯現優異之防制效果，更具體而言，本發明係有關用於防制飛行害蟲之氣溶膠的組成物，其包含a)至少一種下式(1)之除蟲菊酯(pyrethroid)化合物：其中Ra表示氫原子、鹵素原子或甲基，Rb表示鹵素原子、甲基、三氟甲基或氰基，及Rc表示氫原子、甲基、丙炔基或甲氧甲基；b)下式(2)之單醇化合物：HO-X (2)其中X表示具有2至4個碳原子之烷基；c)疏水性有機溶劑；及d)推進劑。
