Chilo partellus, the spotted stalk borer, is a moth in the family Crambidae. It was described by Swinhoe in 1885. It is found in India, Pakistan, Ethiopia, Lesotho, Madagascar, Malawi, South Africa, Sudan, Tanzania, Uganda and on Mayotte. C. partellus is a pest that was introduced to Africa most likely from India in the early 20th century. After arriving in Africa, it has spread to nearly all countries in Eastern and Southern Africa, and it is assumed that it is spreading to Western Africa. C. partellus is indigenous to Asia and became established in Eastern Africa in the early 1930s.