New combination and redescription of Bumba humile, description of four new species and new records from Brazil (Araneae: Theraphosidae: Theraphosinae)

The taxonomic history of Bumba Pérez-Miles, Bonaldo & Miglio, 2014 is mainly based on the inclusion of the new species. Bumba have been characterized by the type IV urticating setae present, retrolateral process on male palpal tibia, palpal bulb resting in a ventral distal excavation of palpal tibia, metatarsus I passes between the two branches of tibial apophysis when flexed, presence of spiniform setae on prolateral and retrolateral sides of maxillae and coxae I-IV. In this paper we include the row of teeth (denticulate row) in the median region of the inferior prolateral keel in all male palps. This structure range from a residual tooth to a ridge of up to five teeth. Both, the denticulate row and the retrolateral process on male palpal tibia in males could be considered as putative synapomorphies for Bumba. Here, Homoeomma humile Vellard, 1924 is transferred to Bumba and redescribed, while the female is described for the first time. Bumba cabocla (Pérez-Miles, 2000) is synonymyzed with B. horrida (Schmidt, 1994). Bumba pulcherrimaklaasi (Schmidt, 1991) is transferred to Cyclosternum Ausserer, 1871. Four new species are described and illustrated: Bumba tapajos sp. nov. from state of Pará, Bumba cuiaba sp. nov. and Bumba rondonia sp. nov., both from states of Rondônia and Mato Grosso, respectively, and Bumba mineiros sp. nov. from Paraguay and the Brazilian states of Goiás, Mato Grosso and Mato Grosso do Sul. Diagnosis of B. horrida and B. lennoni are extended and figures of this species are presented.

New combination and redescription of Bumba humile, description of four new species and new records from Brazil (Araneae: Theraphosidae: Theraphosinae)

The taxonomic history of Bumba Pérez-Miles, Bonaldo & Miglio, 2014 is mainly based on the inclusion of the new species. Bumba have been characterized by the type IV urticating setae present, retrolateral process on male palpal tibia, palpal bulb resting in a ventral distal excavation of palpal tibia, metatarsus I passes between the two branches of tibial apophysis when flexed, presence of spiniform setae on prolateral and retrolateral sides of maxillae and coxae I-IV. In this paper we include the row of teeth (denticulate row) in the median region of the inferior prolateral keel in all male palps. This structure range from a residual tooth to a ridge of up to five teeth. Both, the denticulate row and the retrolateral process on male palpal tibia in males could be considered as putative synapomorphies for Bumba. Here, Homoeomma humile Vellard, 1924 is transferred to Bumba and redescribed, while the female is described for the first time. Bumba cabocla (Pérez-Miles, 2000) is synonymyzed with B. horrida (Schmidt, 1994). Bumba pulcherrimaklaasi (Schmidt, 1991) is transferred to Cyclosternum Ausserer, 1871. Four new species are described and illustrated: Bumba tapajos sp. nov. from state of Pará, Bumba cuiaba sp. nov. and Bumba rondonia sp. nov., both from states of Rondônia and Mato Grosso, respectively, and Bumba mineiros sp. nov. from Paraguay and the Brazilian states of Goiás, Mato Grosso and Mato Grosso do Sul. Diagnosis of B. horrida and B. lennoni are extended and figures of this species are presented.(AU)

Vitalius nondescriptus comb. nov. (Araneae: Theraphosidae: Theraphosinae): an example of theraphosid taxonomic chaos

The male holotype of Hapalopus nondescriptus Mello-Leitão, 1926 is redescribed, illustrated and compared with freshly collected specimens from the type locality. The only difference noted among the holotype and the new material concerns the development of the subapical keel. Its taxonomic position is reinterpreted and discussed, resulting in its transfer to the genus Vitalius Lucas, Silva Junior & Bertani, 1993, and thus making the new combination Vitalius nondescriptus (Mello-Leitão, 1926) comb. nov. The female is described for the first time and the morphological variations in two males, born from the female used in the description, is presented and illustrated. The male differs from those of other Vitalius species by the palpal bulb with short apical keel and bifid tibial spur with narrow prolateral branch and almost straight retrolateral branch. The female differs from those of other Vitalius species by urticating hair of 'type I' having the region 'a' shorter than region 'b'. Hapalopus nondescriptus has a confusing taxonomic history, since the holotype specimen was also used to describe another theraphosid species (Cyclosternum melloleitaoi Bücherl, Thimoteo & Lucas, 1971) which was, consequently, considered its objective synonym. Thus, we consider it a clear example of theraphosid taxonomical chaos.

Vitalius nondescriptus comb. nov. (Araneae: Theraphosidae: Theraphosinae): an example of theraphosid taxonomic chaos

The male holotype of Hapalopus nondescriptus Mello-Leitão, 1926 is redescribed, illustrated and compared with freshly collected specimens from the type locality. The only difference noted among the holotype and the new material concerns the development of the subapical keel. Its taxonomic position is reinterpreted and discussed, resulting in its transfer to the genus Vitalius Lucas, Silva Junior & Bertani, 1993, and thus making the new combination Vitalius nondescriptus (Mello-Leitão, 1926) comb. nov. The female is described for the first time and the morphological variations in two males, born from the female used in the description, is presented and illustrated. The male differs from those of other Vitalius species by the palpal bulb with short apical keel and bifid tibial spur with narrow prolateral branch and almost straight retrolateral branch. The female differs from those of other Vitalius species by urticating hair of 'type I' having the region 'a' shorter than region 'b'. Hapalopus nondescriptus has a confusing taxonomic history, since the holotype specimen was also used to describe another theraphosid species (Cyclosternum melloleitaoi Bücherl, Thimoteo & Lucas, 1971) which was, consequently, considered its objective synonym. Thus, we consider it a clear example of theraphosid taxonomical chaos.

Vitalius nondescriptus comb. nov. (Araneae: Theraphosidae: Theraphosinae): an example of theraphosid taxonomic chaos

The male holotype of Hapalopus nondescriptus Mello-Leitão, 1926 is redescribed, illustrated and compared with freshly collected specimens from the type locality. The only difference noted among the holotype and the new material concerns the development of the subapical keel. Its taxonomic position is reinterpreted and discussed, resulting in its transfer to the genus Vitalius Lucas, Silva Junior & Bertani, 1993, and thus making the new combination Vitalius nondescriptus (Mello-Leitão, 1926) comb. nov. The female is described for the first time and the morphological variations in two males, born from the female used in the description, is presented and illustrated. The male differs from those of other Vitalius species by the palpal bulb with short apical keel and bifid tibial spur with narrow prolateral branch and almost straight retrolateral branch. The female differs from those of other Vitalius species by urticating hair of 'type I' having the region 'a' shorter than region 'b'. Hapalopus nondescriptus has a confusing taxonomic history, since the holotype specimen was also used to describe another theraphosid species (Cyclosternum melloleitaoi Bücherl, Thimoteo & Lucas, 1971) which was, consequently, considered its objective synonym. Thus, we consider it a clear example of theraphosid taxonomical chaos.