Two new South American species of Acrobelus Stal (Hemiptera : Cicadellidae : Cicadellinae) with a key to the species of the genus

摘要

Two new leafhopper species of the Neotropical genus Acrobelus Stal, 1869 are described and illustrated: A. nessimiani sp. nov. from Peru (Amazonas Department) and A. rakitovi sp. nov. from Ecuador (Orellana Province). The two new species, distinguished from the other Acrobelus species by their remarkably long male subgenital plates and by the fusiform macrosetae present on these plates, seem to be closely related. A key to male specimens of the five known species of Acrobelus is provided. Taxonomic notes on the genus are included.