The genus Duda part II: the species group from East Asia, with morphological and molecular evidence (Diptera, Drosophilidae).

Eight new species of the species group are described from China: , , , , , , , and One known species S. c (Kikkawa & Peng) is redescribed. A key to all the examined species in the group is provided. Species delimitations have been improved by integrating the DNA sequences with morphological information. The intra- and interspecific pairwise p-distances (proportional distance) are summarized. Some nucleotide sites with fixed status in the alignment of the COI sequences (662 nucleotide sites in length) are used as "pure" molecular diagnostic characters to delineate species in the group.