Delias sagessa is a butterfly in the family Pieridae. It was described by Hans Fruhstorfer in 1910. It is found in New Guinea.[1]
The wingspan is about 38–42 mm. Males are white, with the forewings black from the apex of the cell distad, the costal edge black down to the base, a white area rounded distally, extending close to the apex of SM2. The hindwings have a very thin black distal border. Females are similar to the males, but the black apical area of the forewings is wider, and the hindwings have a broad black distal border, which slightly widens costally. There are often white submarginal dots on both wings, those of the hindwings slightly pinkish. The white area is feebly yellowish.[2]