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Issue: Vol. 4531 No. 4: 14 Dec. 2018
Type: Article
Published: 2018-12-14
DOI: 10.11646/zootaxa.4531.4.6
Page range: 554–566
Abstract views: 60
PDF downloaded: 3

The Tree Cricket Neoxabea brevipes Rehn, 1913 (Orthoptera: Gryllidae: Oecanthinae) from the Brazilian southern Atlantic Forest: morphology,
bioacoustics and cytogenetics

Programa de Pós–Graduação em Entomologia e Programa de Pós-Graduação em Biologia Animal, Universidade Federal de Pelotas, Departamento de Ecologia, Zoologia e Genética, Instituto de Biologia, Campus Universitário Capão do Leão s/n, Capão do Leão, RS, Brazil
Programa de Pós–Graduação em Entomologia e Programa de Pós-Graduação em Biologia Animal, Universidade Federal de Pelotas, Departamento de Ecologia, Zoologia e Genética, Instituto de Biologia, Campus Universitário Capão do Leão s/n, Capão do Leão, RS, Brazil
Programa de Pós–Graduação em Entomologia e Programa de Pós-Graduação em Biologia Animal, Universidade Federal de Pelotas, Departamento de Ecologia, Zoologia e Genética, Instituto de Biologia, Campus Universitário Capão do Leão s/n, Capão do Leão, RS, Brazil
Laboratório de Orthoptera, Centro de Ciências Biológicas e da Saúde, Universidade Estadual do Oeste do Paraná, rua Universitária, n. 2069, 85819–110, Universitário, Cascavel, PR, Brazil
Programa de Pós–Graduação em Entomologia e Programa de Pós-Graduação em Biologia Animal, Universidade Federal de Pelotas, Departamento de Ecologia, Zoologia e Genética, Instituto de Biologia, Campus Universitário Capão do Leão s/n, Capão do Leão, RS, Brazil
Pontifícia Universidade Católica do Rio Grande do Sul, Faculdade de Biociências, Departamento de Biodiversidade e Ecologia, Laboratório de Entomologia. Av. Ipiranga, 668, Partenon, Porto Alegre/RS, CEP: 90619–900 Porto Alegre, RS, Brazil
Orthoptera Insecta Ensifera taxonomy genitalia metanotal gland

Abstract

In this paper we improve the morphological description of the tree cricket Neoxabea brevipes Rehn, 1913 and a new occurrence record for the species at the São Francisco de Paula National Forest Conservation Unit, State of Rio Grande do Sul, southern Brazil. Morphological characterization is provided together with illustrations emphasizing the most significant diagnostic features, such as the metanotal gland, abdominal specializations and phallic sclerites. The calling song was field recorded, comprising a continuous trill with dominant frequency of 3.6 kHz (19.7°C). The karyotype was described for the first time to Neoxabea Kirby, 1906, including diploid number of 2n=26, with two sexual chromosomes.

 

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