Abstract.Little is known about the jumping plant-lice of Brazil from where seven families, 45 genera and 76 species have been previously reported, but estimates suggest that there may be as many as 1,000 species. This study reports 34 species of Psylloidea which were collected along the edges of Amazon-Cerrado natural transitional forests in the municipality of Sorriso, state of Mato Grosso, from August 2013 to July 2014. Of the species reported in this study only nine represent described taxa, two of which are reported for the first time from Mato Grosso.

ABSTRACT:Isogonoceraia divergipennis (Hemiptera: Psyllidae) associated with Poincianella pluviosa (Fabaceae) was recorded in the state of Mato Grosso, Brazil, for the first time. Previously, I. divergipennis was known only in the states of Bahia, Minas Gerais, Paraná and São Paulo. Our results extend the known area of distribution of the insect to central-western Brazil. The studied material was from Sorriso,