Genus Vachonobisium Vitali-di Castri, 1963 Vachonobisium Vitali-di Castri, 1963: 31; Harvey, 1992: 1409; Harvey, 1996: 258. Type species: Vachonobisium troglophilum Vitali-di Castri, 1963. Remarks. T he genus is characterized by the presence of a semi-circular ventral depression, with a small basal tooth, near the base of the movable chelal finger, as well as a heavily sclerotized expansion distal to the depression, on male specimens. It consists of three species, all occurring around Chile on mainland South America. Species included: Vachonobisium heros (Beier, 1964), V.intermedium (Vitali-di Castri, 1963) and V.troglophilum Vitali-di Castri, 1963.

Published as part of Neethling, J. A. & Neethling, C., 2023, A systematic revision of the South African Gymnobisiidae (Pseudoscorpiones: Neobisioidea), pp. 501-543 in Zootaxa 5256 (6) on pages 504-505, DOI: 10.11646/zootaxa.5256.6.1, http://zenodo.org/record/7762456