Sesamia nonagrioides, the Mediterranean corn borer, Pink stalk borer or West African pink borer, is a moth of the Noctuidae family. It was described by Lefebvre in 1827. It is found in Spain, southern France, Italy and on the Balkan Peninsula, as well as in north-western, south-western and western Africa. The wingspan is 30–40 mm. The forewings are grey-yellowish, marked with a marginal band and with rounded spots. The hindwings are white.There is a variable number of generations per year, ranging from two in southern France to up to four in Morocco.