Reevaluation of the systematic position of some southern Brazilian Discocyrtus (Gonyleptidae : Roeweriinae), with the reinstatement of Bunopachylus
Rafael N. Carvalho
A B D , Adriano B. Kury A and Marcos R. Hara C
+ Author Affiliations
- Author Affiliations
A Departamento de Invertebrados, Museu Nacional, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, São Cristóvão, 20.940-040, Rio de Janeiro, Brazil.
B Departamento de Zoologia, Instituto de Biologia Roberto de Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, Maracanã, 20.550-900, Rio de Janeiro, Brazil.
C Escola de Artes, Ciências e Humanidades, Universidade de São Paulo (EACH USP), Avenida Arlindo Béttio, 1000, Vila Guaraciaba, 03828-000, São Paulo, Brazil.
D Corresponding author. Email: rafaelcarvalhobio@hotmail.com
Invertebrate Systematics 35(6) 701-724 https://doi.org/10.1071/IS20083
Submitted: 23 November 2020 Accepted: 13 February 2021 Published: 13 August 2021
Abstract
During a study of Discocyrtus Holmberg, 1878 and related genera, several species of alleged Pachylinae, mostly Discocyrtus, from southern Brazil were suspected of belonging in Roeweriinae. Herein, a maximum parsimony phylogenetic analysis of morphological characters was performed to test this hypothesis. Accordingly, the following taxonomic changes are herein proposed: the genus Bunopachylus Roewer, 1943 (currently in Pachylinae) is herein revalidated from synonymy with Discocyrtus, transferred to the Roeweriinae and now includes three species: B. armatissimus comb. nov. (for Discocyrtus armatissimus Roewer, 1913), B. orientalis comb. nov. (for Pachyloides orientalis Roewer, 1913) and B. occultus sp. nov. (which had been misidentified in the literature). A total of five new synonymies are proposed here: Discocyrtus milloti Roewer, 1943 = Discocyrtus coronatus Mello-Leitão, 1935 = Paradiscocyrtus trochanteralis Roewer, 1929 = Discocyrtus calcarifer Roewer, 1917 = Pachyloides orientalis Roewer, 1913, and Bunopachylus magnicalcar Roewer, 1943 (the type-species of Bunopachylus) = Discocyrtus armatissimus Roewer, 1913.
Keywords: Arachnida, Opiliones, Neotropical fauna, taxonomy.
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