Mesoptila melanolopha is a moth in the family Geometridae first described by Charles Swinhoe in 1895. It is found in Nepal, China (Shaanxi, Jiangsu, Hunan), Korea, Japan, Taiwan, India (Sikkim, Meghalaya), Sri Lanka, Thailand, Vietnam, Malaysia and on Java, Bali and Borneo.
The wingspan is 16âÂÂ21 mm.
The larvae have been recorded feeding Stephania species.