Chileotrecha atacamensis Maury, 1987

Iuri, Hernán A., Iglesias, Mónica S. & Ojanguren Affilastro, Andrés A., 2014, A new species of Chileotrecha Maury, 1987 (Solifugae: Ammotrechidae) from Argentina with notes on the genus, Zootaxa 3827 (1) : -

Chileotrecha atacamensis Maury, 1987

Figs. 1–2 , 7 , 9

Examined material. MACN (7978): 1 ♂ Holotype. Chile, Atacama, access to “La Silla” observatory, 18 km S Domeyko, [29°07'27.98"S 70°56'07.54"W]. 3-X-1983. E. Maury coll. MACN (7979): 1 ♂ Paratype. Chile, Atacama, Caldera, [27°04'00.21"S 70°49'03.90"W]. 4-X-1983. E. Maury coll. MACN (7980): 1 ♂ Paratype. Chile, Atacama, 70 km S. Copiapó, [27°58'00.37"S 70°33'20.72"W]. 4-X-1983. E. Maury coll. MACN (7981): 1 immature. Chile, Coquimbo, “Quebrada Playa de Agua Dulce”, 51 km N Los Vilos, [31°31'09.97"S 71°33'56.83"W]. 2-X-1983. E. Maury coll. MACN (7982): 1 immature Chile, Coquimbo, “Quebrada Playa de Agua Dulce”, 51 km N Los Vilos, [31°31'09.97"S 71°33'56.83"W]. 8-I-1984. E. Maury coll. MACN (7983); ♀. Chile, Atacama, 77 km S Copiapó, [28°01'38.03"S 70°34'34.52"W]. 4-X-1983. E. Maury coll. MACN (7980): MACN (7984); 1 ♀. Same data as holotype.

Remarks. Maury (1987) mentions the presence of 1.1.1.1.1 dorsal spines on metatarsus II and III but from the study of type material, we observed that three are retrolaterodorsal and two intercalated retrolateral spines: 1.(1).1.(1).1. Maury (1987) mentions that Chileotrecha bears 4 ventral spines in the apical segment of tarsi II–IV; however that distribution should be mentioned as 2.2, since it is not a single row of four setae.

Maury (1987) states that some males have a small ventral projection on fixed finger tip of the chelicerae. We have only detected this feature in one of the paratypes (MACN 7979), a specimen that could represent an undescribed species because it also shows morphological differences in the fixed finger tip and the position of flagellum.

Chileotrecha atacamensis has been recorded by Maury (1987) in eight localities of Chile ( Fig. 7 ), from sea level to 1600 m asl. Other records of the genus from Chile reach 3000 m asl. (Las Hedionditas to Embalse Laguna).

Figures

FIGURE 7. Distribution map of genus Chileotrecha.

FIGURES 1 – 6. 1 – 2 ― Chileotrecha atacamensis Maury 1987, male. 1. Right chelicera, ectal view (scale bar = 0, 5 mm). 2. Detail of flagellum (scale bar = 0, 5 mm). 3 – 6. ― Chileotrecha argentinensis n. sp. 3. Male, right chelicera, ectal view (scale = 0, 5 mm). 4. Detail of male flagellum. (scale bar = 0, 5 mm). 5. Female, right chelicera, ectal view (scale bar = 1 mm). 6. Genital plate of female, ventral view, arrows indicate position of microsetae. (scale bar = 0, 3 mm).

FIGURES 9 – 10. Male propeltidium dorsal view. 9. Chileotrecha atacamensis Maury, 1987. 10. Pseudocleobis andinus (Pocock, 1899).