Lopesia erythroxyli Rodrigues & Maia and Lopesia maricaensis Rodrigues & Maia, two new species of Cecidomyiidae that induce conical galls on bud of Erythroxylum ovalifolium Peyr (Erythroxylaceae) and on marginal leaf roll of Protium brasiliense (Spr.) Engl. (Burseraceae), are described and ilustrated (larva, pupa, male, and female) based on material from Rio de Janeiro, Brazil. A key to the known species of Lopesia is given.
Lopesia; Burseraceae; Erythroxylaceae; galling insect; restinga; taxonomy
