Majority rule consensus tree from a Bayesian phylogenetic analysis based on combined COI and 28S D2 data, showing that the lata group, as originally circumscribed by us, consists of two distinct but unrelated lineages that are consistent with the two subgenera Megaselia and Aphiochaeta: the lata group sensu stricto and the lucifrons group. Numbers on branches are posterior probabilities (PP, in percent). PP values are not given for branches inside the terminal clusters corresponding to species. The scale bar represents nucleotide substitutions per site. Numbers within boxes (LAXXX) are specimen IDs and indicate which specimens were used in the analysis. Specimens marked with asterisks (*) represent morphospecies that were not supported as distinct by the molecular analysis.