Eccedoxa lysimopa is a moth in the family Lecithoceridae. It was described by Edward Meyrick in 1933. It is found in southern India. The wingspan is about 16 mm. The forewings are light ashy grey, the stigmata forming small cloudy-fuscous spots, the plical near and somewhat before the first discal. The hindwings are grey, faintly iridescent and with an elongate ochreous-grey-whitish patch in and beneath the cell from the base.