Genus Mazax O. Pickard-Cambridge, 1898 Type species: Mazax pax Reiskind, 1969, replacement name for Mazax spinosa O. Pickard-Cambridge, 1898 (Reiskind 1969). Diagnosis (modified from Reiskind (1969) and Rubio & Danişman (2014)). Abdomen with distinct, rugose petiole, second pair of abdominal spines sclerotized to spine-like tubercles and/or spines (except in M. ajax), AER recurved, PER slightly recurved to straight, eyes moderately large and approximately equal, with AME slightly smaller than ALE. Remarks. A rugose petiole and abdominal spines can be found in the Asian genus Serendib Deeleman-Reinhold, 2001, but Serendib species have a sub-globose abdomen, a strongly recurved posterior eye row with widely separated eyes, and AME larger than ALE (Deeleman-Reinhold 2001). Species of Grismadox resemble Mazax in their habitus, subequal eyes and the sclerotized second abdominal setae, but can be separated from the latter by a short, smooth petiole, the male palp with both dRTA and vRTA, and females with anterior COs (Pett et al. 2022).

Published as part of Perger, Robert & Pett, Brogan L., 2022, Mazax akephaloi sp. nov. - a new Neotropical spider species resembling ' headless' Ectatomma ants (Araneae: Corinnidae: Castianeirinae), pp. 579-590 in Zootaxa 5150 (4) on page 581, DOI: 10.11646/zootaxa.5150.4.6, http://zenodo.org/record/6626882