Psocoptera. from Ilha de Marcica and Pacaraima, Roraima State, Brazil, representing 103 species are recorded. Sixty-two are new to science. and are described and figured, representing genera Echmepteryx (2), Tapinella (3), Musapsocus, (1), Seopsocus (3),Isth-mopsocis (3), Dolabellopsocus (6), Epipsocus (5), Neurostigma. (1), Nctiopscus (1), Cae-cilius (6) , Enderluinella (1), Xanthocarcilius (1) , Polypsocus (3) , Scytopsocus (1), ar-chipsocus (1), Lachesilla (4), Notolachesilla (1) , Perispsocus (4), Dactylopsocus (1) , Metylophorus (3), Blaste. (4), Lichenomiae (3), Myopsocus (3). Genus Notarchisps u. gen. is erected for Archipsocus macrurus New and a new species. Genus Monocladellus Eu-derlein in placed in synonymy of, Polypsocus Hagen. South American species assigned to genus Lophopteryglla Enderlein by New (1979) are. reassigned to Myopscus and represent a parallel development in the latter genus.