ACANTHOLIBITIA MELLO- LEITÃO, 1928 TRANSL. NOV.

Acantholibitia Mello-Leitão, 1928: 10 . Type-species by original designation: Acantholibitia pustulosa Mello-Leitão, 1928 .

Bodunius Mello-Leitão, 1935: 376 . Type-species by original designation: Bodunius biocellatus Mello- Leitão, 1935, syn. nov.

Fortalezius Roewer, 1947: 32 . Type-species by original designation: Fortalezius excellens Roewer, 1947, syn. nov.

Elleria Piza, 1947: 266 . Junior homonym of Elleria Raymond, 1944 (Xiphosura) . Type-species by original designation: Elleria bilunata Piza, 1947, syn. nov.

Elleriana Kury, 2003: 53 . Nomen novum for Elleria Piza, 1947, syn. nov.

Etymology: Acantholibitia, from Greek άΚανθα (thorn) + pre-existing genus Libitia; gender feminine. Bodunius, from Portuguese bodum (pungent stink), referring to the repugnatory secretion; gender masculine. Fortalezius from toponym Fortaleza; gender masculine. Elleria from the middle name of Estonian/ Brazilian arachnologist Hélia Eller Monteiro Soares; gender feminine.

Diagnosis: Small cosmetids (DS length <3 mm) with short and delicate legs. Outline of DS gamma- type, with narrow carapace and well-marked constriction. DS covered with notable granules, sometimes white coloured. Interocular distance narrow (one-fifth of carapace width). Areas I – III with paramedian spines, other areas may be armed or not. Stylus of penis not enlarged and with a complete wattle going to the base of glans. Stylus with stylar barbs .

Included species: Acantholibitia pustulosa Mello-Leitão, 1928; A. biocellata (Mello-Leitão, 1935) comb. nov.; A. excellens (Roewer, 1947) comb. nov. and A. pluriarcuata (Mello-Leitão, 1936) comb. nov.

Combined distribution: Brazilian portion of semi-arid diagonal of South America (Fig. 10).