Acanthogonyleptes singularis ( Mello-Leitao , 1935)

Pinto-da-Rocha, Ricardo, Benedetti, Alipio Rezende, de Vasconcelos, Eduardo Gomes & Hara, Marcos Ryotaro, 2012, New systematic assignments in Gonyleptoidea (Arachnida, Opiliones, Laniatores), ZooKeys 198, pp. 25-68 : 31

Acanthogonyleptes singularis ( Mello-Leitao, 1935)

Adelphobunus singularis Mello-Leitão, 1935: 392, fig. 19 (♂); Kury 2003: 137; (male holotype; Brazil, São Paulo, Ribeirão Pires, IBSP 17, examined).

Sphaerobunus singularis : Kury 2003: 139.

Acanthogonyleptes singularis : DaSilva and Pinto-da-Rocha 2010: 626.

Bocaina marmorata Piza, 1943: 46, fig. 5 (♂); Kury 2003: 139; (male holotype, Brazil, São Paulo, Serra da Bocaina , Fazenda Águas de Santa Rosa, MZSP 810, examined). Synonymy established by Soares and Soares (1987).

Centroleptes flavus Roewer, 1943: 45, fig. 50 (♀); Kury 2003: 122; (female holotype, Brazil, Santa Catarina , Seara, Nova Teutonia, SMF 6430/63, examined). Syn. n.

Material examined.

BRAZIL. São Paulo: São José do Barreiro (Serra da Bocaina , Fazendas Águas de Santa Rosa), female holotype of Bocaina marmorata Piza (MZSP 810); Ribeirão Pires, male holotype of Adelphobunus singularis Mello-Leitão (IBSP 17); São José do Barreiro, 1 ♂ (HEMS 761); Santo André, 1 ♂ & 1 ♀ (MZSP 21257). Santa Catarina : Seara (Nova Teutônia), ♀ holotype of Centroleptes flavus Roewer (SMF 6430/63).

Diagnosis.

Acanthogonyleptes singularis and Acanthogonyleptes variolosus can be distinguished from the remaining species of the genus by the presence of a median single elevation on scutal area III. Males of Acanthogonyleptes singularis can be distinguished from those of Acanthogonyleptes variolosus by the presence of a robust curved retrolateral apophysis on trochanter IV.

Taxonomical note.

The genus Acanthogonyleptes is a morphologically homogeneous group, probably representing a monophyletic group (see Sphaerobunus in Kury 2003). Acanthogonyleptes singularis and Centroleptes flavus bear a median single elevation on scutal area III. In addition, the morphology of female leg IV of both Acanthogonyleptes singularis and Centroleptes flavus are identical. The geographical records of Acanthogonyleptes singularis include localities in the Brazilian states of São Paulo and Rio de Janeiro. The only known specimen identified as Centroleptes flavus is the holotype, supposedly collected in Seara (Nova Teutônia), and therefore the locality cited by Roewer (1943) is considered wrong.