Belenois thysa, the false dotted border, is a butterfly of the Pieridae family. It is found in Africa. The wingspan is 45–60 millimetres (1.8–2.4 in) for males and 48–62 mm (1.9–2.4 in) for females. Adults are on wing year round in warm areas. The larvae feed on Capparis species and Maerua racemulosa.