Zenirella Piza, 1973 Euceraia Hebard, 1927 Ferreiraia Piza, 1976 Euceraia Hebard, 1927 Zenirella acreana Ferreiraia nigropunctata nigropunctata acreana Zenirella Zenirella Ferreiraia Parableta Euceraia The Tettigoniidae (Orthoptera) described by Salvador de Toledo Piza Jr. and deposited in the collection of the University of São Paulo, Escola Superior de Agricultura " Luiz de Queiroz ", Brazil Chamorro-Rengifo, Juliana Braun, Holger Zootaxa 2010 2635 41 66 Piza, 1973 Piza 1973 [151,520,1085,1111] Insecta Phaneropteridae Euceraia Animalia Orthoptera 14 55 Arthropoda species acreana comb. nov.    ZenirellaPiza, 1973 syn. nov.of  Euceraia Hebard, 1927   FerreiraiaPiza, 1976 syn. nov.of  Euceraia Hebard, 1927   Zenirella acreanaand  Ferreiraia nigropunctata, each described from a male specimen from northern Brazil, not only represent a single genus, but also a single species. Habitus, coloration, including the dark spots on the tegmina, and the male genitalia, most notably the conspicuous appendages of the tenth tergite are identical. In  nigropunctatathe dark markings on the hind tibia are more conspicuous, but they are present in  acreanaas well. While there is little doubt that the species belongs to the genus group Plagiopleurae, it was difficult to decide whether the insufficiently diagnosed genus  Zenirellashould be conserved. Piza considered the modified tenth tergite as diagnostic of  Zenirella, without mentioning any other genera. He mentioned these appendages also for  Ferreiraia, a genus he otherwise compared to  Parableta. Such cerciform processes are actually diagnostic of  Euceraia, and Piza’s specimens comply quite well with Grant’s (1964) diagnosis of that genus. So it is probably better to accommodate the species there.