Elachista seductilis is a moth of the Elachistidae family that is endemic to New South Wales. The wingspan is 7.5–8.1 millimetres (0.30–0.32 in) for males and 8–9.5 millimetres (0.31–0.37 in) for females. The forewings are pale bluish grey. Females are darker. The hindwings are dark grey.