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Issue: Vol. 4975 No. 1: 24 May 2021
Type: Article
Published: 2021-05-24
DOI: 10.11646/zootaxa.4975.1.4
Page range: 127–140
Abstract views: 268
PDF downloaded: 12

Pseudoscopas carbonelli n. sp. (Orthoptera: Acrididae: Melanoplinae) from southern Brazil, including chromosome complement

Laboratório de Entomologia, Departamento de Biodiversidade e Ecologia, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul. Avenida Ipiranga, 6681, Prédio 40, sala 127, 90619-900, Porto Alegre, RS, Brazil.
Universidade Federal do Rio Grande do Sul, Instituto de Biologia, Departamento de Zoologia e Departamento de Genética, Campus do Vale, Porto Alegre, RS, Brazil.
Universidade Federal do Rio Grande do Sul, Instituto de Biologia, Departamento de Zoologia e Departamento de Genética, Campus do Vale, Porto Alegre, RS, Brazil
Universidade Federal de Pelotas, Departamento de Zoologia e Genética, Instituto de Biologia, Campus Universitário Capão do Leão s/n, Capão do Leão, RS, Brazil.
Laboratório de Entomologia, Departamento de Biodiversidade e Ecologia, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul. Avenida Ipiranga, 6681, Prédio 40, sala 127, 90619-900, Porto Alegre, RS, Brazil.
Universidade Federal de Pelotas, Departamento de Zoologia e Genética, Instituto de Biologia, Campus Universitário Capão do Leão s/n, Capão do Leão, RS, Brazil.
Orthoptera Insect morphology taxonomy Neotropical cytogenetic

Abstract

New species of Pseudoscopas (Orthoptera, Acrididae, Melanoplinae). Pseudoscopas carbonelli n. sp. from São Francisco de Paula, State of Rio Grande do Sul, Brazil is described, and a key to the species of Pseudoscopas Hebard, 1931 is added. Morphological descriptions are provided together with illustrations emphasizing the most significant diagnostic features of external morphology and male genitalia. Pseudoscopas carbonelli n. sp. differs from the other species known by epiproct with six protuberances in the median region, and extremities of the apical region of the epiproct sclerotized, as well as the lophi with sclerotization. Chromosome analyses were performed using standard staining procedures, showing diploid number of 2n = 23, X0♂/24, XX♀, and the karyotype made up of exclusively acrocentric chromosomes, including a medium-size megameric chromosome. Information is given about type specimens, material examined and geographic distribution.

 

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