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Issue: Vol. 5729 No. 2: 15 Dec. 2025
Type: Article
Published: 2025-12-15
DOI: 10.11646/zootaxa.5729.2.5
Page range: 315-334
Abstract views: 113
PDF downloaded: 7

Silent crickets: A new genus of Neometrypini from the Brazilian Atlantic Forest (Orthoptera: Oecanthidae: Tafaliscinae)

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
Departamento de Entomologia; Museu Nacional; Universidade Federal do Rio de Janeiro; Av. Bartolomeu de Gusmão; 875; 20941- 160; Rio de Janeiro; RJ; Brazil
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
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; Departamento de Genética e Biologia Evolutiva; Instituto de Biociências; Universidade de São Paulo; Rua do Matão; travessa 14; n. 277; 05508-090; Cidade Universitária; São Paulo; SP; Brazil
Orthoptera acoustic communication genitalia morphology new species oecanthid

Abstract

A new genus of oecanthid cricket from the Neometrypini tribe is described here: Aphonodiacanthus Tonon & Campos gen. nov., comprising three new species: A. melanocephalus Tonon, Campos & Souza-Dias sp. nov., A. maculatus Tonon & Campos sp. nov., and A. chlorops Tonon & Campos sp. nov., from the Brazilian states of Paraná, Bahia, and São Paulo respectively. The combination of male genitalia characters, mainly the pointed shape of the pseudepiphallic lateral lobes, and other morphological features such as the short forewings and supra anal plate, supports the proposal of this new genus. A geographical distribution map and identification key to species are provided, along with an updated identification key to genera of Neometrypini. A brief discussion is also presented for traits such as the subgenual organ, the absence of acoustic communication, the metanotal glands, and highlight the presence of A. chlorops Tonon & Campos sp. nov. in a densely populated area within the São Paulo metropolitan region, inhabiting an urban fragment of Atlantic Forest.

 

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How to Cite

Almeida, V.T.D., Souza-Dias, P.G.B., Nihei, S.S. & Campos, L.D.D. (2025) Silent crickets: A new genus of Neometrypini from the Brazilian Atlantic Forest (Orthoptera: Oecanthidae: Tafaliscinae). Zootaxa, 5729 (2), 315–334. https://doi.org/10.11646/zootaxa.5729.2.5