Gnathothlibus erotus (white-brow hawkmoth) is a moth of the family Sphingidae. It is found from India to Borneo. The wingspan is about 70 mm. Adults have brown fore wings with a faint pattern of light and dark markings, and bright yellow hind wings with dark margins. Larvae have been recorded on a wide range of plants, including Ipomoea batatas, Vitis vinifera, Dillenia alata, Escallonia macrantha, Melastoma affine, Pentas lanceolata, Cayratia acris, Cayratia clematidea, Cayratia trifolia, Leea indicaParthenocissus quinquefolia, Hibbertia scandens, Cissus and Morinda.