A new species ofSacadafrom northern Thailand is described:S. chaehomensissp. nov.Pellinen & Zahiri (Lepidoptera: Pyralidae, Pyralinae). Morphological characters and DNA barcode data are provided for the new species, with a morphological comparison toS. dzonguensisandS. umtasorensis, and a DNA-barcode comparison toS. ragonotalisandS. albioculalis, respectively. After this addition, the current number of valid species in the genusSacadais 43.