A new species, Daplasa medoga sp. nov., is described from Tibet, China. The new species can be distinguished morphologically from all other known Daplasa species by its male genitalia with a sagittate uncus and distally broadly crotched valvae. The validity of new species is well supported by the molecular phylogenetic analyses of one mitochondrial gene (COI) and two nuclear genes (EF-1α RPS5), with a total length of 2,324 bp.
Keywords: Lepidoptera, Daplasini, megoda, male genitalia, phylogenetic analyses, Tibet.