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.
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13 August 2021
Reevaluation of the systematic position of some southern Brazilian Discocyrtus (Gonyleptidae : Roeweriinae), with the reinstatement of Bunopachylus
Rafael N. Carvalho,
Adriano B. Kury,
Marcos R. Hara
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Invertebrate Systematics
Vol. 35 • No. 6
September 2021
Vol. 35 • No. 6
September 2021
Arachnida
Neotropical fauna
Opiliones
taxonomy