Anopheles (Cellia) sulawesi, a member of the Leucosphyrus Group from Indonesia is redescribed in the adult stage and descriptions and illustrations of the larva and pupa are presented for the first time, based on newly collected material from the Bone-Dumoga forest reserve, north Sulawesi. A complete synonymy is given. Comparisons are made with other named species of the Leucospyhrus Group recorded from Indonesia and Malaysia. Anopheles (Cel.) balabacensis introlatus, and An. (Cel.) riparis macarthuri are elevated to species status.