Gall midges (Diptera, Cecidomyiidae) associated with Aldina heterophylla Spr. ex Benth. (Fabaceae) are recorded. We found three galls morphotypes induced by Cecidomyiidae (Diptera) on leaflets of A. heterophylla. A new species of Cecidomyiidae - Lopesia aldinae is described and ilustrated based on material collected at Reserva Biológica da Campina, Manaus, Amazonas, Brazil. One inquiline species - Contarinia sp., one predator species - Lestodiplosis sp. and eleven parasitoids species being four Eulophidae species, five Eurytomidae species and two Pteromalidae species were recorded in Lopesia aldinae galls.
insect galls; campina; Amazon Forest; Lopesia; taxonomy