Stenoma balanoptis is a moth in the Depressariidae family. It was described by Meyrick in 1932. It is found in Peru. The wingspan is about 21 mm. The forewings are white, the veins lined brownish-ochreous, towards the dorsum and termen the groundcolour suffused pale ochreous between the veins. The stigmata are dark brown, the first discal forming a very elongate spot, the second discal a small spot, the plical a linear mark obliquely before the first discal. There is a marginal series of dark brown linear marks on the posterior half of the costa and dots on the termen. The dorsal area is clothed with elongate scales towards the base. The hindwings are pale grey.