Pachylobos longicornis ( Mello-Leitão, 1922 )

Carvalho, Rafael N. & Kury, Adriano B., 2025, Further draining of Discocyrtus to expand Neopachylinae (Opiliones, Gonyleptidae): absorption of taxa and establishment of new genera and species, Zoological Journal of the Linnean Society (zlae 023) 203 (1), pp. 1-65 : 61-62

Pachylobos longicornis ( Mello-Leitão, 1922)

• Gonyleptes longicornis Mello-Leitão 1922: 335 .

Gonyleptes longicornis — Mello-Leitão 1923: 142, fig.17;1932: 297, fig. 193; Roewer 1930: 368, fig. 5; Piza 1940b: 313, fig. 5.

Discocyrtus longicornis : B. Soares 1943: 53.

Discocyrtus longicornis — B. Soares 1944a: 177; 1944b: 222; 1944d: 285; Soares and Soares 1954: 251; Kury 2003: 164.

Pachylobos longicornis : Carvalho and Kury 2020: 98.

• Discocyrtus transversalis Piza 1940a: 58 , fig. 6 [junior subjective synonym of Gonyleptes longicornis Mello-Leitão 1922 by B. Soares (1943, p. 53)].

• Discocyrtus guttatus Roewer 1927: 335 , figs 2a–b [junior subjective synonym of Gonyleptes longicornis Mello-Leitão 1922 by Carvalho and Kury (2020, p. 98)].

Discocyrtus guttatus — Roewer 1929: 209, pl. 1, figs 1a–b; Mello-Leitão 1932: 171, fig. 90; Soares and Soares 1954: 250; Acosta 1996: 215; Kury 2003: 163.

Type data

Discocyrtus guttatus : ♂ holotype ( SMF 1437, examined by photograph) from BRAZIL, São Paulo, Ribeirão Pires. Discocyrtus transversalis : ♂ ♀ syntypes ( MZSP 858, examined by photograph) from BRAZIL, São Paulo, Alto da Serra. Gonyleptes longicornis : 2 ♂ syntypes ( MZSP 1563, examined) from BRAZIL, São Paulo, Alto da Serra.

Records

BRAZIL: state of São Paulo : Bertioga, Boracéia, Iguape, Ilhabela, Itanhaém, Miracatu, Paranapiacaba, Peruíbe, Salesópolis, Santo André, São Paulo, Sete Barras ( Carvalho and Kury 2020) .

Diagnosis

The diagnosis provided here is an updated version of the one presented in Carvalho and Kury (2020: 99), as follows: P. longicornis can be distinguished from P. iratiensis and P. littoralis due to: (1) Ocularium with a pair of divergent and fused at base spines ( Carvalho and Kury 2020: fig. 14B); (2) Scutal area III with a pair of paramedian cones with rounded apex ( Carvalho and Kury 2020: fig. 14A, C); (3) Fe II retrodorsal distal with a spur; (4) Fe IV dorsal face with a comb of spines (IiiI) on the proximal half ( Carvalho and Kury 2020: fig. 14A); (5) Fe IV armed with an outstanding spine on retrodorsal distal face ( Carvalho and Kury 2020: fig. 14D, G); (6) Fe IV of females straight ( Carvalho and Kury 2020: fig. 13D–E); (7) DS posterior margin and free tergites I– III of females with a row of outstanding acuminated tubercles (as in P. littoralis ) ( Carvalho and Kury 2020: fig. 8D).

Distribution

BRAZIL: state of São Paulo : Alto da Serra, Bertioga, Iguape, Ilhabela, Itanhaém, Miracatu, Peruíbe, Ribeirão Pires, Salesópolis, Santo André, São Paulo, Sete Barras ( Fig. 34 ).

Redescription

See the detailed redescription in Carvalho and Kury (2020: 98–102).

Figures

Figure 34. South and southeastern Brazil, showing the distribution of Pachylobos Piza, 1940. Shaded areas in the background are Morrone’s regionalization of the Neotropics (‘provinces’; Morrone et al. 2022): Atlantic province (in dark green), Araucaria Forest province (in light green) and Paraná Forest province (in medium green).