Taxonomic review of the postica-group of Fannia Robineau-Desvoidy (Diptera, Fanniidae) from China, with the description of one new species

The Chinese fauna of the Fannia postica-group Chillcott (1961) is reviewed, the diagnostic features of this group are redefined, one new species, Fannia nudifemorata sp. n., is described, and a key to the males of nine known species is given. One new junior synonym, F. tigripeda Xue, Wang & Li, syn. n. for F. stigi Rognes is established. To facilitate comparisons of the species, Fannia aethiops Malloch, F. ardua Nishida, F. discoculea Xue, F. ringdahlana Collin, F. postica (Stein), F. spathiophora Malloch, and F. stigi Rognes are redescribed and illustrated. The geographic distribution of the known Chinese species is updated.