title: Pizacris: a new genus and two new species of Luzarinae cricket close to Guabamima de Mello, 1992 and Mellopsis Mews & Sperber, 2010 (Orthoptera: Grylloidea: Luzarinae).
abstract: Here we describe a new genus and two new species of Luzarinae crickets (Grylloidea, Phalangopsidae) from the Brazilian Atlantic Forest of Espírito Santo, Minas Gerais and Rio de Janeiro States (Brazil). We describe Pizacris Souza-Dias & Desutter-Grandcolas, n. gen., transfer the species Mellopsis zefai Mews & Sperber, 2010 to P. zefai (Mews & Sperber, 2010) n. comb., redescribe this species based in topotypes and, since the type series is lost, designate a neotype. We also describe the second species of this genus, P. carioca Desutter-Grandcolas & Souza-Dias n. gen., n. sp. The new genus is characterized by the dark brown uniform coloration with strikingly white joints 4 and 5 of maxillary palpi, reduced FWs, without stridulatory file and, mainly, the absence of the pseudepiphallic arms in male phallic complex. We provide a brief discussion about the morphology of male genitalia in Pizacris Souza-Dias & Desutter-Grandcolas, n. gen. and related genera, Guabamima de Mello, 1992 and Mellopsis Mews & Sperber, 2010. We also provide an identification key for these genera and notes about the reproductive behavior of P. zefai (Mews & Sperber, 2010) n. comb.
authors.affiliation: Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, rua do Matão, travessa 14, n. 101, 05508-900, Cidade Universitária, São Paulo, SP, Brazil; Email: unknown.
authors.forename: Pedro G B
authors.initials: PG
authors.lastname: Souza-Dias
authors.affiliation: ISYEB UMR 7205 CNRS MNHN UPMC EPHE, Muséum national d'Histoire naturelle, Département Systématique et Evolution, 57 rue Cuvier, Case Postale 50 (Entomologie), 75231 Paris Cedex 05, France; Email: unknown.
authors.forename: Laure
authors.initials: L
authors.lastname: Desutter-Grandcolas
authors.affiliation: ISYEB UMR 7205 CNRS MNHN UPMC EPHE, Muséum national d'Histoire naturelle, Département Systématique et Evolution, 57 rue Cuvier, Case Postale 50 (Entomologie), 75231 Paris Cedex 05, France; Email: unknown.
authors.forename: Marcelo Ribeiro
authors.initials: MR
authors.lastname: Pereira
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D049628:Body Size; D001938:Brazil; D017753:Ecosystem; D005260:Female; D006135:Gryllidae / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D008297:Male; D009929:Organ Size