Discocyrtanus oliverioi ( H. Soares, 1945 ) H. Soares, 1945

Kury, Adriano B. & Carvalho, Rafael N., 2016, Revalidation of the Brazilian genus Discocyrtanus, with description of two new species (Opiliones: Gonyleptidae: Pachylinae), Zootaxa 4111 (2), pp. 126-144 : 137

Discocyrtanus oliverioi ( H. Soares, 1945) comb. nov.

( Figs 2 c, 3g –i, 8)

Discocyrtus oliverioi H. Soares, 1945: 214 , figs. 3, 3a, 4; Kury 2003: 164.

Type data. ♂ holotype 1 ♀ paratype ( MZSP OS 2903); 4 ♀ paratypes ( MZSP OS 2896); 1 ♂ 1 ♀ paratypes (MNRJ-HS); 1 ♂ 1 ♀ paratypes ( MZSP) and 3 ♂ 3 ♀ paratypes (OS) Brazil, SP, Barretos: Colômbia, 4–8.ix.1944, J & O Schubart leg.; 1 ♂ 2 ♀ paratypes ( MZSP OS 2893) Brazil, MG, Frutal: Rio Grande, 2.ix.1944, J & O Schubart leg.

Other material examined. BRAZIL: 1 ♂ 1 ♀ ( UFMG 12154) GO, Goiânia, -15.71027, -49.35975, 14.ix.2005 M De Maria leg.; 6 ♂ 11 ♀ ( UFMG 12212) same data; 1 ♂ 1 ♀ ( MNRJ 13389) same data.

Etymology. Patronymic in honor of Brazilian zoologist Olivério Mário de Oliveira Pinto (1896–1981).

Diagnosis. Ocularium with pair of parallel spines, instead of divergent as in other Discocyrtanus ( Fig. 3 g); scutal area III with a pair of paramedian rounded tubercles (blunt in comparison to D. bugre sp. nov., D. goyazius and D. pertenuis comb. nov. and lower than that found in D. bugre sp. nov. and D. tocantinensis sp. nov.), slightly curved backwards. ( Fig. 3 h) Area IV with ordinary tubercles (without transverse row of rounded highlighted tubercles as D. bugre sp. nov. and D. tocantinensis sp. nov. or acuminate tubercles as D. goyazius ). Tr IV of ♂ with very large prodorsal distal apophysis as a gladius, slightly curved to retrolateral region ( Fig. 3 i); Fe IV retrolateral proximal without developed spines (what does not occur in the other Discocyrtanus ). Fe IV proventral mediandistal row of 8 spines (iiiiiiii).

Distribution (new records with asterisk). BRAZIL: GO, *Goiânia; MG, Frutal; SP, Barretos.

Figures

FIGURE 2. Species of Discocyrtanus, left Fe IV of males, dorsal view. Images taken under ultraviolet (black light) and artificially colorized to enhance details of sculpture: a. Discocyrtanus bugre (MNRJ 4345); b. Discocyrtanus goyazius (MNRJ- HS 1022); c. Discocyrtanus oliverioi (MNRJ 13389); d. Discocyrtanus pertenuis (MNRJ 2179); e. Discocyrtanus tocantinensis (MNRJ 19084).

FIGURE 3. Discocyrtanus spp., some external diagnostic features for ♂ specimens. Respectively: ocularium, frontal view; armature of scutal area III, posterior view and trochanter IV, prodistal view: a – c. Discocyrtanus bugre sp. nov.; d – f. Discocyrtanus goyazius; g – i. Discocyrtanus oliverioi comb. nov.; j – l. Discocyrtanus pertenuis comb. nov.; m – o. Discocyrtanus tocantinensis sp. nov.