We review the species of Megaselia similar to M. sulphurizona Borgmeier. A close examination of M. sulphurizona indicates that its current concept includes at least 16 species, 15 of which- M. albizona, M. borealizona, M. colombizona, M. cryptizona, M. danizona, M. guanizona, M. marizona, M. nivizona, M. oklizona, M. paulizona, M. reductizona, M. solizona, M. tropizona, M. wendizona, and M. winnizona are described as new, based primarily on molecular data. The identity of the holotype of the species M. sulphurizona is clarified through wing vein morphometrics. Two of the new species, Megaselia albizona and M. cryptizona, are the 47^th and 48^th new species of phorid fly described from the BioSCAN project, an urban biodiversity study in Los Angeles, California, USA.

.DAT file: Data were collected by landmarking wings using the program TPSdig2. They are formatted for analysis using the program PAST.

.FAS file: Data downloaded from BOLD and aligned.