A new species of gall midge (Diptera, Cecidomyiidae) associated with Pleroma raddianum (DC) Gardner (Myrtales: Melastomatacea), an endenic plant to Brazil

Lopesia pleromatis sp. nov. (Lopesiini, Cecidomyiidi) is described based on material collected in Atlantic Forest areas of Bertioga (São Paulo State, Brazil). Specimens were obtained from globoid leaf galls on Pleroma raddianum (DC.) Gardner (Melastomataceae), an endemic plant to Brazil. Lopesia pleromatis is compared to other congeneric species. The most important morphological characters are illustrated.(AU)