PROBLEM TO BE SOLVED: To develop and provide a technology capable of discriminating a larva ecdysis individual of an arguloida insect easily and surely even in the case of a beginner not having an experience or a knowledge related to sericulture.SOLUTION: In an ecdysis individual discrimination method of a larva of an arguloida insect, excitation light having a specific wavelength is irradiated to the larva of the arguloida insect, and an individual emitting pale fluorescence from a body surface by irradiation of the excitation light is discriminated as an ecdysis individual.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】養蚕に関する経験や知識のない初心者であっても容易かつ確実にチョウ目昆虫の幼虫脱皮個体を判別できる技術を開発し、提供する。【解決手段】特定の波長を有する励起光をチョウ目昆虫の幼虫に照射し、その励起光の照射によって青白い蛍光を体表面から放出する個体を脱皮個体として判別するチョウ目昆虫の幼虫における脱皮個体判別方法。【選択図】図1