Timyra marmaritis is a moth in the Lecithoceridae family. It was described by Meyrick in 1906. It is found in Sri Lanka. The wingspan is 21-23 mm. The forewings are whitish-ochreous tinged with yellowish and irrorated with dark fuscous. There is a narrow dark fuscous basal fascia, followed by a clear pale ochreous-yellow subbasal fascia, edged posteriorly with dark fuscous suffusion. There is a slender cloudy dark fuscous slightly oblique median fascia, slightly bent in the middle and a dark fuscous streak along the termen. The hindwings are posteriorly clothed with hair-scales, rather dark fuscous, the disc more or less broadly suffused with light ochreous-yellowish. There is a subdorsal groove enclosing an ochreous-yellowish hair-pencil from the base and a dark fuscous terminal line.