Abstract
A cladistic analysis using 50 characters and 21 genera of the Neotropical tribe Abracrini was performed in order to test the monophyly of the tribe and to reconstruct a phylogenetic hypothesis. Abracrini is supported by three synapomorphies: penultimate article of maxillary palps unflattened; second segment of hind tarsi short and internal apophysis of cerci vestigial. The analysis demonstrates that Abracrini is a monophyletic tribe, as well as a relationship among its genera was (Psiloscirtus splendidus (((Parasitalces sexnotata + Sitalces volxemi) (Arimacris trinitatis (Caruaruacris bivittatus + Salvadoracris nigritus))) (((Eusitalces vittatus + Liebermannacris dorsualis) (Monneacris fascipes (Robustusacris balzapambae (Xiphiola borellii (Eujivarus fusiformis + Roppacris griseipes))))) (((Omalotettix obliquus + Orthoscapheus coryaceus) (Abracris dilecta + Jodacris ferruginea)) (Teinophaus saussurei (Rhachicreagra nothra (Agesander ruficornis + Ixalotettix compactus))))))). Further data on biogeography and a distribution map are provided.References
Amédégnato, C. (1974). Les genres d’ Acridiens néotropicaux leur classification par familles sous - familles et tribus. Acrida 3, 193–204.
Amédégnato, C. (1976). Structure et evolution des genitalia chez les Acrididae et familles apparentées. Acrida, 5, 1–15.
Amédégnato, C. (1977). Etude des Acridoidea centre et sud americaines (Catantopinae sensu latu), anatomie des genitalia, classification, repartition, phylogenic. These de Doctorat. Paris. 385 pp.
Amédégnato, C. & Descamps, M. (1979). Diagnoses génériques et affinités phylétiques d’ Acridoidea néotropicaux récoltés par le Dr. Campos Seabra et M. Descamps (Orthoptera). Annales de la Société Entomologique de France, 15(3), 423–487.
Amorim, D. S. (1982). Classificação por seqüenciação: uma proposta para a denominação dos ramos retardados. Revista Brasileira de Zoologia, 1(1), 1–9.
Bruner, L. (1906). Synoptic list of Paraguayan Acrididae or Locusts, with descriptions of new forms. Proceedings of the United States National Museum, 30(1461), 613–694, pls. 36–38.
Bruner, L. (1908). Acrididae In Biologia Centrali Americana 2, 249–342.
Bruner, L. (1911). South American Acridoidea. Annals of the Carnegie Museum, 8 (1), 5–147.
Bruner, L. (1919). I. Saltatorial Orthoptera from South America and the Isle of Pines. Annals of the Carnegie Museum, 13 (1–2), 5–91.
Carbonell, C. S. (1996). Revision of the genus Orthoscapheus Bruner 1906, with description of a new species (Acrididae, Ommatolampinae, Abracrini). Journal of Orthoptera Research 5, 29–36.
Cigliano, M. M. (1989). A cladistic analysis of the family Tristiridae (Orthoptera, Acridoidea). Cladistics, 5(4), 379–393.
Cigliano, M. M. (1997). Ronderosia, a new genus of South American Melanoplinae (Orthoptera, Acrididae). Journal of Orthoptera Research, 6(1), 1–19.
Cigliano, M. M. (2007). Review of the South American genus Eurotettix Bruner (Orthoptera, Acridoidea, Melanoplinae). Systematic Entomology, 32, 176–195.
Cigliano, M. M. & Lange, C. E. (2007). Systematic revision and phylogenetic analysis of the South American genus Chlorus (Orthoptera, Acridoidea, Melanoplinae). Zoologica Scripta, 36(3), 241–254.
Cigliano, M. M., Ronderos, R. & Kemp, W. P. (1996). Phylogenetic relationships of Scotussa and Leiotettix (Orthoptera, Acrididae). Cladistics, 12 (2), 125–138.
Costa, M. K. M. &. Carvalho, G. S. (2006a). Salvadoracris e Caruaruacris, novos gêneros de gafanhotos sul-americanos (Orthoptera, Acrididae). Revista Brasileira de Entomologia, 50(1), 49–52.
Costa, M. K. M. &. Carvalho, G.S. (2006b). Revisão dos gêneros Sitalces, Eusitalces e Parasitalces (Orthoptera, Acrididae, Abracrini) e descrição de três novos gêneros. Revista Brasileira de Entomologia, 50(2), 137–152.
Costa, M. K. M. &. Carvalho, G. S. (2007). Análise cladística e biogeográfica dos gêneros do grupo Sitalces (Orthoptera, Acrididae, Abracrini). Iheringia, 97 (4), 383–391.
Descamps, M. (1976). Le peuplement acridien d'un pèrimétre d'Amazonie colombienne. Annales de la Société Entomologique de France (N.S.), 12 (2), 291–318.
Descamps, M. & Amédégnato, C. (1970). Acridomorpha (Orthoptera) récoltés en Guyane Française par la mission du Muséum National d'Histoire Naturelle. Annales de la Société Entomologique de France (N.S.) 6(4), 861– 897.
Eades, D. C. & Otte, D. Orthoptera Species File online (Version 2.0/3.5). Disponível em:
< http://osf2.orthoptera.org/HomePage.aspx>. Acesso em: 13 nov. 2009.
Goloboff, P. (1999). NONA, version 2.0, published by the author. Tucumán.
Goloboff, P., Farris, J. S. & Nixon, K. (2003). TNT: Tree Analysis Using New Technology Program and documentation, version, 2003.
Herbard, M. (1923). Studies in the Dermaptera and Orthoptera of Colombia. Third Paper, Orthopterous family Acrididae. Transactions of the American Entomological Society, 49 (845), 165–313, pl. 10–17.
Herbard, M. (1924). Studies in the Dermaptera and Orthoptera of Ecuador. Proceedings of the Academy of Natural Sciences of Philadelphia, 76, 109–248, pl. 5–10.
Jago, N. J. & Rowell, C. H. F. (1981). Rachicreagra (Acrididae, Ommatolampinae) forest grasshoppers from Central America with unique aedeagal asymmetry. Systematic Entomology, 6, 179–219.
Morrone, J. J. (2004). Panbiogeografia, componentes bióticos y zonas de transición. Revista Brasileira de Entomologia, 48(2), 149–162.
Morrone, J. J. (2006). Biogeographic areas and transition zones of Latin America and the Caribbean Islands based on Panbiogeographic and cladistic analyses of the Entomofauna. Annual Review of Entomology, 51, 467–494.
Nixon, K. C. 2002. Winclada, Version 1.00.08. Published by the author, Ithaca, N.Y.
Nixon, K. C. & Carpenter, J. M. (1993). On outgroups. Cladistics, 9(4), 413–426.
Rehn, J. A. G. 1905. A contribution to the knowledge of the Acrididae (Orthoptera) of Costa Rica. Proceedings of the Academy of Natural Sciences of Philadelphia, 57(2), 400–454.
Roberts, H. R. & Carbonell, C. S. (1981). A revision of the Neotropical genus Abracris and related genera (Orthoptera, Acrididae, Ommatolampinae). Proceedings of the Academy of Natural Sciences of Philadelphia, 133, 1–14.
Ronderos, R. A. & Cigliano, M. M. (1991). The Andean Dichroplini: cladistic analysis with description of Keyacris n. gen. and Ponderacris n. gen. (Orthoptera; Acrididae; Melanoplinae). Transactions of the American Entomological Society, 11(3–4), 167–191.
Stål, C. (1878). Observations orthopterologiques. De genere pezotettigis et nonnullis generibus affinibus. (Sur le Pezotettix et quelques genres voisins). Bihang till Kongliga Svenska Vetenskaps-Akademien Handlingar, 5 (9), 3–20.