This small yellowish fruit fly, somewhat larger than a house fly, with rather long, patterned wings is limited to the Florida Keys, from Key Largo Key to Key West. Its two known hosts are sapodilla and wild-sapodilla. This 2-page fact sheet was written by H. V. Weems, Jr., and published by the UF Department of Entomology and Nematology, March 2012.
http://edis.ifas.ufl.edu/in541