Six Japanese species of the genus Lecithocera Herrich-Schffer, 1853 (Gelechioidea: Lecithoceridae) are treated: L. chersitis Meyrick, 1918; L. daebuensis Park Lee, 1999; L. duplicata (Gozmy, 1978); L. tridentata Wu Liu, 1993; L. fascimaculata sp. nov.; and L. fuscialaris sp. nov.. One species, L. duplicata (Gozmy, 1978), is reported for the first time from Japan. The male and female genitalia, wing venation, and adult appearance are illustrated for all the species.