PROBLEM TO BE SOLVED: To provide a compound having excellent insecticidal effect and useful as an active ingredient of an insecticide.SOLUTION: This invention provides an oxime derivative represented by general formula (1) (where R, X and n represent definitions described in the specifications) and an insecticide that comprises the same as an active ingredient.【課題】優れた殺虫効果を有し、殺虫剤の有効成分として有用な化合物を提供すること。【解決手段】一般式(1)【化1】(式中、Ra、X及びnは、明細書中に記載の定義を表す。)で示されるオキシム誘導体及びそれを有効成分として含有する殺虫剤。【選択図】なし