Teldenia niveata's forewings have a length of 11-14 mm for males and 11.5-14.5 mm for females with buff lunulate postmedial and subterminal fasciae.
The length of the forewings is 1114 mm for males and 11.5-14.5 mm for females. The ground colour, fringe and costa are white, the forewings with buff lunulate postmedial and subterminal fasciae. 
