Orobothriurus atiquipa Ochoa and Acosta, 2002

Figures 11D, 18A, 21A, 25D, 28A, 53

Orobothriurus atiquipa Ochoa and Acosta, 2002a: 99–102, figs. 1–9, table 1; Ojanguren Affilastro, 2003a: 121, fig. 14; Ochoa, 2004a: 43, 52, 55, 73, figs. 1, 2, 21, table 1; 2005: 55, figs. 7, 9, table 2; Rein, 2007: 5.

Orobothriurus aff. paessleri: Lourenço and Dastych, 2001: 54 [probable misidentification: specimens from Chala].

Orobothriurus paessleri: Lourenço and Dastych, 2001: 54 [probable misidentification: specimens from Atico and Road between Chala and Cháparra].

TYPE MATERIAL: PERU: Arequipa Department: Caraveli Province: Holotype ♂ (MACN-Ar 10010), paratype ♂ (MHNC), Lomas Atiquipa, Cerro Lloque, 15 ° 459S 74 ° 229W, 950 m, 13.ix.1999, H. Zeballos and R. Gutiérrez.

NEW RECORDS: PERU: Arequipa Department: Caraveli Province: Lomas Atiquipa, Sector Conchara, 15 ° 469160 S 74 ° 229420W, 750 m, 6.iii.2004, J.L. Velasquez and J.A. Ochoa, 3 ♂, 3 juv. (MHNC), 2 juv. (AMNH [LP 3056]).

DIAGNOSIS: Orobothriurus atiquipa may be distinguished from all other species of the genus by means of the telotarsal setation of the legs and the granulation on the ventral surface of metasomal segment V. In O. atiquipa, the telotarsi of legs III and IV each possess 3/4 spiniform macrosetae in the proand retroventral rows, and the VSM and VM carinae are not discernible from the dense granulation on the ventral surface of segment V (fig. 21A) whereas, in other species of Orobothriurus, the telotarsi of legs III and IV each possess 3/3 spiniform macrosetae in the pro- and retroventral rows, and the VM and VL carinae are well defined on segment V (figs. 20A, D, E, 21D). Additionally, the hemispermatophore of O. atiquipa is proportionally longer than that of all other species. This species possesses the most elongated frontal crest in the genus (fig. 28A).

DISTRIBUTION: Orobothriurus atiquipa is known only from the type locality in northern Arequipa Department, southern Peru, at 750–950 m (figs. 2D, 53).

ECOLOGY: Lomas biotopes are isolated patches of green vegetation on hillsides below 1000 m, surrounded by hyperarid desert, along the western coast of southern Peru and northern Chile (fig. 2D). Climatic patterns produce fog zones that allow plant communities to exist in areas where the rainfall is very low. The flora and fauna of Lomas have closer affinities with that of the high Andean peaks than the surrounding desert biota (Herrera, 1930; Péfaur, 1981; Ochoa, 2005). The vegetation in the habitat of O. atiquipa is characterized by shrubs, herbaceous plants, and trees like Myrcianthes ferreyrae (Mc- Vaugh) McVaugh ( Myrtaceae), Caesalpinia spinosa (Molina) Kuntze (Fabaceae), Acacia macracantha Humboldt and Bonpland ex Willdenow (Fabaceae), and Carica candicans A. Gray (Caricaceae) . An iurid in the genus Hadruroides was recorded in sympatry with O. atiquipa (Ochoa and Prendini, 2010) .

REMARKS: Specimens from three localities (Atico, Chala and Road between Chala and Cháparra) in the Arequipa Department, Peru, were listed under O. paessleri and ‘‘ O. aff. paessleri ’’ by Lourenço and Dastych (2001: 54), who noted that the specimens from Chala are ‘‘possibly a new species.’’ Although we have not examined these specimens, they are probably conspecific with O. atiquipa, not O. paessleri, based on the known distribution of this species.