Análise acústica e morfológica de três espécies de Nemobiinae (Orthoptera; Grylloidea; Trigonidiidae) do Pantanal Norte, Mato Grosso, Brasil

Abstract

The present study describes characteristics of the external morphology and phallic complex of three Nemobiinae species collected in the Pantanal of Poconé, Mato Grosso, Brazil: Argizala brasiliensis, Eunemobius carolinus carolinus and Hygronemobius palus sp. nov. The structure of the call sound of these species of Nemobiinae is also described, whose comparison shows that there is a distinction between the individuals analyzed, which serves as an important mechanism of reproductive isolation. A new species of Hygronemobius is described here and the species Eunemobius carolinus carolinus is redescribed. The geographical distribution of Argizala brasiliensis and Eunemobius carolinus carolinus is expanded in the present work and represent the first record for Eunemobius in Brazil.