Switching identities: a revision of the Afrotropical spider genus Carteronius Simon, 1897 (Araneae, Corinnidae), senior synonym of Mandaneta Strand, 1932, with a new genus of the Pronophaea group.

The genus Carteronius Simon, 1897 is transferred from Clubionidae to Corinnidae and recognized as the senior synonym of Mandaneta Strand, 1932, being the oldest available name for the pre-occupied Mandane Karsch, 1880. Upon comparing the respective type specimens, the type species of Carteronius and the type species of Mandaneta were found to represent the same species. Whence the type species Carteronius helluo Simon, 1896, is considered a junior synonym of the type species Mandaneta sudana (Karsch, 1880). Three other species of Carteronius are transferred to Donuea Strand, 1932 (Corinnidae): D. fuscus (Simon, 1896) comb. nov. from Mauritius, D. vittiger (Simon, 1896) comb. nov. and D. argenticomus (Keyserling, 1877) comb. nov., both from Madagascar. The type species, Carteronius sudanus comb. nov., from Côte d'Ivoire, Democratic Republic of the Congo, Ghana, Guinea, Sierra Leone, and C. gentilis (Simon, 1909) comb. nov., from Equatorial Guinea and Cameroon (the latter transferred from Procopius Thorell, 1899) are redescribed, and the female of C. gentilis is described for the first time. Six new species of Carteronius are described: C. ashanti Bonaldo & Silva-Junior sp. nov. from Ghana, C. myene Bonaldo & Labarque sp. nov., and C. simoni Bonaldo & Shimano sp. nov. from Gabon, C. lumumba Bonaldo & Ramírez sp. nov. from Cameroon, Gabon and the Democratic Republic of the Congo, and C. arboreus Bonaldo & Haddad sp. nov. and C. teke Bonaldo & Bosselaers sp. nov. from the Democratic Republic of the Congo. A key and distribution maps to all eight species in the genus are presented. The related Bunyoronius Bonaldo, Ramírez & Haddad gen. nov. is proposed to include B. femoralis Bonaldo, Ramírez & Haddad sp. nov. from the Central African Republic, Uganda, and Rwanda.

Around the World in Eight Million Years: Historical Biogeography and Evolution of the Spray Zone Spider Amaurobioides (Araneae: Anyphaenidae).

Closely related organisms with transoceanic distributions have long been the focus of historical biogeography, prompting the question of whether long-distance dispersal, or tectonic-driven vicariance shaped their current distribution. Regarding the Southern Hemisphere continents, this question deals with the break-up of the Gondwanan landmass, which has also affected global wind and oceanic current patterns since the Miocene. With the advent of phylogenetic node age estimation and parametric bioinformatic advances, researchers have been able to disentangle historical evolutionary processes of taxa with greater accuracy. In this study, we used the coastal spider genus Amaurobioides to investigate the historical biogeographical and evolutionary processes that shaped the modern-day distribution of species of this exceptional genus of spiders. As the only genus of the subfamily Amaurobioidinae found on three Southern Hemisphere continents, its distribution is well-suited to study in the context of Gondwanic vicariance versus long-distance, transoceanic dispersal. Ancestral species of the genus Amaurobioides appear to have undergone several long-distance dispersal events followed by successful establishments and speciation, starting from the mid-Miocene through to the Pleistocene. The most recent common ancestor of all present-day Amaurobioides species is estimated to have originated in Africa after arriving from South America during the Miocene. From Africa the subsequent dispersals are likely to have taken place predominantly in an eastward direction. The long-distance dispersal events by Amaurobioides mostly involved transoceanic crossings, which we propose occurred by rafting, aided by the Antarctic Circumpolar Current and the West Wind Drift.