Sperber, C.F. Collevatti, R.G. The Gall Maker Neopelma baccharidis Burck. (Homoptera: Psyllidae)on Baccharis dracunculifolia (Asteraceae): Sucess and Parasitoidism density dependence Subjects--Topical Terms: PLANTA HOSPEDEIRACOMPOSITAEHOMOPTEROINSETOPARASITO DE PLANTAPARQUE ESTADUALRIO DE JANEIRO