Mylothris kilimensis is a butterfly in the family Pieridae. It is found in Kenya and Tanzania.[1] The habitat consists of submontane and montane forests.
The length of the forewings is 22–27 mm for males and 22.5-27.8 mm for females. There is a large pale yellow basal area on the upperside of the forewings in both sexes. The hindwings with have a pale yellow basal area. The underside often has rays of greenish-yellow suffusion, particularly in females. The underside of the forewings has a basal pale yellow patch. Adults have a weak and floating flight. They fly around trees and shrubs.
The larvae feed on Santalales species.