Chilenuncia Muñoz-Cuevas, 1971

Porto, Willians, Derkarabetian, Shahan, Giribet, Gonzalo & Pérez-González, Abel, 2024, Systematic revision of the South American “ Nuncia ” (Opiliones, Laniatores, Triaenonychidae), ZooKeys 1207, pp. 1-149 : 1-149

Genus Chilenuncia Muñoz-Cuevas, 1971 , nom. rest.

Figs 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55

Chilenuncia Muñoz-Cuevas, 1971: 873; Cekalovic 1985: 11 [considered syn. jr. of Nuncia Loman, 1902, by Maury 1990].

Parattahia [part]: Soares 1968: 266; Cekalovic 1985: 11; Maury and Roig Alsina 1985: 78.

Nuncia [part]: Maury 1990: 103, 105; Kury 2003: 21.

Diagnosis.

It is distinguished from all other South American Triaenonychidae by the unique morphology of the male genitalia, characterized by a capsula externa that covers nearly the entire capsula interna, with a small apical cleft. The external morphology, particularly the presence of a small curved apophysis in the ocularium, allows for differentiation from other South American triaenonychid genera, although it bears resemblance to the Australian genus Calliuncus , which forms part of Clade C.

Type species.

Chilenuncia donosoi Muñoz-Cuevas, 1971 (syn. jr. of Parattahia chilensis Soares, 1968 )

Included species.

Chilenuncia chilensis comb. nov., Chilenuncia rostrata comb. nov.

Distribution.

Argentina: Neuquén, Río Negro. Chile, Metropolitan Region of Santiago, O’Higgins, Maule, Ñuble, Bío-Bío, Araucanía, Los Ríos, Los Lagos, and Aysén Regions (Fig. 4 C ).

Figures

Figure 4. Maps showing the distribution of the species used in this work. South America (Chile and western Argentina inset). Chile in green, Argentina / South America in grey. Terrestrial ecoregions (following Olson et al. 2001) highlighted in yellow (Chilean Matorral) and orange (Valdivian temperate forests).

Figure 44. Chilenuncia chilensis comb. nov. habitus, male A dorsal view C lateral view E ventral view. Female B dorsal view D lateral view F ventral view. Scale bars: 1 mm. Species of Clade C, see Fig. 3.

Figure 45. Chilenuncia chilensis comb. nov. male, SEM images of habitus A dorsal view B lateral view C, D ventral view. Scale bars: 500 µm.

Figure 46. Chilenuncia chilensis comb. nov. chelicerae: mesal A ectal B Pedipalps: mesal C ectal D. Scale bars: 200 µm (A, B); 500 µm (C, D).

Figure 47. Chilenuncia chilensis comb. nov. legs I A II B III C IV D. Scale bars: 500 µm.

Figure 48. Chilenuncia chilensis comb. nov. penis: ventral A, B apical C lateral D, E dorsal F, G. Scale bars: 200 µm (A, D, F); 100 µm (B, E, G); 50 µm (C).

Figure 49. Chilenuncia chilensis comb. nov. penis: ventral A apical B lateral C dorsal D. Colors: ventral plate (yellow), capsula externa (blue), capsula interna (red). Scale bars: 100 µm (A, C, D); 50 µm (B).

Figure 50. Chilenuncia rostrata comb. nov. habitus, male A dorsal view C lateral view E ventral view. Female B dorsal view D lateral view F ventral view. Scale bars: 1 mm.

Figure 51. Chilenuncia rostrata comb. nov. male, SEM images of habitus A dorsal view B lateral view C, D ventral view. Scale bars: 500 µm (A, B, C); 200 µm (D).

Figure 52. Chilenuncia rostrata comb. nov. chelicerae: mesal A ectal B Pedipalps: mesal C ectal D. Scale bars: 200 µm (A, B); 500 µm (C, D).

Figure 53. Chilenuncia rostrata comb. nov. legs I A II B III C IV D. Scale bars: 500 µm (A, B, D); 200 µm (C).

Figure 54. Chilenuncia rostrata comb. nov. penis: ventral A, B apical C lateral D, E dorsal F, G. Scale bars: 200 µm (A, D, F); 100 µm (B, E, G); 50 µm (C).

Figure 55. Chilenuncia rostrata comb. nov. penis: ventral A apical B lateral C dorsal D. Colors: ventral plate (yellow), capsula externa (blue), capsula interna (red). Scale bars: 100 µm (A, C, D); 50 µm (B).