Reevaluation of the systematic position of some southern Brazilian

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.

Between areolated and band-shaped spots: a revision of Lacronia Strand, 1942 (Opiliones, Gonyleptidae).

“…+ (Neopachylinae + Roeweriinae)). However, in other published results, this basal topology of DRMN does not resolve in the same manner Carvalho et al 2021;Saraiva et al 2021).…”

“…2). Most of the characters used here were retrieved from papers that discussed the internal relationships of DRMN (Carvalho & Kury 2020, 2021b, 2022Carvalho et al 2021) and modified when necessary to codify the character states of Lacronia members. When a character state is cited throughout the text to describe some relevant pattern, it is presented by the character number between square brackets and the associated character state between parentheses.…”