Mesabolivar aurantiacus (Mello-Leitão, 1930)
Blechroscelis aurantiacus Mello-Leitão, 1930: 61, fig. 13 (♂).
Blechroscelis irroratus Mello-Leitão, 1947: 160 –161, figs. 4–5 (♂♀). Synonymized by Huber (2000). Blechroscelis virescens Mello-Leitão, 1947: 161, fig. 6 (♂). Synonymized by Huber (2000).
Psilochorus cambridgei Mello-Leitão, 1947: 163 (♂♀) (name preoccupied).
Psilochorus browningi Roewer, 1951: 455; new name for P. cambridgei Mello-Leitão, 1947 . Synonymized by Huber (2000). Mesabolivar aurantiacus: Huber 2000: 206, figs. 42, 43, 81, 801–810 (♂♀).
Autana autanensis González-Sponga, 2011b: 40, pl. 1, figs. 1–7 (♂); new synonymy.
Justification of synonymy. Mesabolivar aurantiacus is widespread in the Amazon region of South America (map 6 in Huber 2000). The holotype of Autana autanensis (from Amazonas State, Venezuela) was re-examined (by PAC) and found to be identical with the drawings in Huber 2000 (distinctive process on tip of slightly s-shaped procursus; same cheliceral modifications).