Immature stages of five species of Gelechioidea in Japan, Depressariidae: Agonopterix pallidior, Depressaria nomia, Stathmopodidae: Hieromantis kurokoi, and Gelechiidae: Pseudotelphusa nephomicta, Dichomeris harmonias, are illustrated with biological data. Photographs of male and female genitalia of Depressaria nomia are given for the first time. Quercus serrata is newly recorded as host plant of Depressaria nomia, and Lespedeza bicolor as that of Dichomeris harmonias.