Orchestina caleta Izquierdo, 2017

Izquierdo, Matías Andrés & Ramírez, Martín J., 2017, Taxonomic Revision Of The Jumping Goblin Spiders Of The Genus Orchestina Simon, 1882, In The Americas (Araneae: Oonopidae), Bulletin of the American Museum of Natural History 2017 (410), pp. 1-1 : 1-

Orchestina caleta Izquierdo , new species

Figures 152 , 153 , 165A–C , 170C , 172C , 173I ,

174H , 175B , 177A–C , 178C , map 29

TYPES: Male holotype from Chile: Región de Atacama (III): Provincia de Huasco: Caleta Chañaral de Aceituno, 89.9 km (por aire) SW Vallenar, rocky shore with Nolana sp. , 10 m, -29.07194°, -71.48750°, Oct. 30, 2011, M.J. Ramírez, A. Ojanguren, J. Pizarro et al., deposited in MNSC, PBI_OON 42182; same data, 1 female paratype deposited in MACN 30604, PBI_OON 50045; same data, 1 female paratype deposited in MNSC, PBI_OON 50046.

ETYMOLOGY: The specific name is a noun in apposition taken from the type locality.

DIAGNOSIS: Males resemble those of O. curico , O. granizo , O. jaiba , and O. pizarroi in having a simple copulatory bulb, with no additional apophysis and a long embolus, but can be distinguished by the stronger embolus with slightly different sperm duct course (figs. 165A–C, 173I, 174H). Females resemble those of other Chilean species by the general shape of the anterior receptaculum but can be distinguished by the absence of external pockets and the shape of the anterior receptaculum with short, strong anterior apodemes in a straight transverse line (figs. 170C, 172C, 175B).

MALE (PBIOON_00042182): Total length 1.17. Habitus as in figure 152A–C. CEPHALO-

THORAX: Clypeus slightly sloping forward. Labium rectangular. Endites with one short, toothlike projection. ABDOMEN: Dorsum soft portions pale orange, round. GENITALIA: Bulb tapering apically; embolus strong, long; sperm duct slightly coiled (figs. 165A–C, 173I, 174H).

FEMALE (PBI_OON 42182): Total length 1.52. Habitus as in figure 152D–F. CEPHALOTHO- RAX: Carapace anteriorly narrowed to 0.49× its maximum width or less. ABDOMEN: Ovoid.

GENITALIA: Epigastric region without external pockets, with two weakly sclerotized, paired folds at both sides of median region, internal pockets absent; anterior receptaculum with welldeveloped lumen formed by one large chamber; posterior receptaculum absent, posterior apodeme formed by entire plate (figs. 170C, 172C, 175B).

DISTRIBUTION: Known from Atacama (Huasco Province) and Coquimbo (Limarí and Choapa Provinces), Chile (figs. 177A–C, 178C, map 29).

OTHER MATERIAL EXAMINED: CHILE: Región de Atacama (III): same data as holotype, 4♀ ( MACN 28392, PBI_OON 50044). Región de Coquimbo (IV): Provincia de Limarí: 24 km S Socos Rt. 5, km., 360 m, -30.88333°, -71.61666°, Nov. 09, 1993, Platnick, Catley, Ramírez, and Allen, 1♀ ( AMNH, PBI_ OON 1943). Provincia de Choapa: costa al S de Quebrada de Quereo, rocky shore with succulent plants, 4 m, -31.93556°, -71.51556°, Feb. 21, 2012, M.J. Ramírez, M.A. Izquierdo, P. Michalik, C. Wirkner, K. Huckstorf, 13 ( MACN 28647, PBI_OON 42206); same data, 13, 14 juveniles, sex unknown ( MACN 28648, PBI_OON 42207); costa en Quebrada de Quereo, 2.2 km S Los Vilos, rocky shore with Nolana sp. , 1 m, -31.93250°, -71.51388°, Nov. 02, 2011, M.J. Ramírez, A. Ojanguren, J. Pizarro et al., 1♀ ( MACN 28393, PBI_OON 42183); Los Vilos, -31.91667°, -71.51667°, Aug. 25, 1966, E. Schlinger, M. Irwin, 13 ( AMNH, PBI_OON 51090).

Figures

FIGURE 152. Orchestina caleta, habitus. A–C. male. D–F. female. A, D. Dorsal. B, E. Lateral. C, F. Ventral. Scale bars: A–C. 0.2 mm. D–F. 0.5 mm. (PBI_OON 42182).

FIGURE 153. Orchestina caleta, SEM of female leg structures. A. Prolateral setae of right metatarsus I. B. Same, close-up of one seta. C. Same, right metatarsus II. D. Same, close-up of one seta. E. Claws of right leg I, apical. F. Tarsal organ II. Scale bars: A, C. 10 µm. B, D, F. 5 µm. E. 20 µm. (PBI_OON 42182).

FIGURE 165. Orchestina spp., male palps. A–C. O . caleta, holotype. D–F. O . pizarroi, holotype. A, D. Prolateral. B, E. Dorsal. C, F.Retrolateral. Scale bars 0.2 mm. (PBI_OON 42182, 42238).

FIGURE 170. Orchestina spp., female genitalia, ventral view. A. O . quenies, paratype. B. O . pandeazucar, paratype. C. O . caleta, paratype. D. O . totoralillo, holotype. E. O . pizarroi, paratype. F. O . molles, paratype. G. O . cachai. Arrows point to the external pockets. Asterisks show the sclerotized ridges in the epigastric fold area. Scale bars: 0.2 mm. (PBI_OON 2301, 50045, 42185, 30844, 42238, 1934, 14826).

FIGURE 172. Orchestina spp., cleared female genitalia, ventral view. A. O . quenies. B. O . pandeazucar, paratype. C. O . caleta, paratype. D. O . totoralillo, holotype. E. O . pizarroi, paratype. F. O . molles, paratype. G. O . cachai. Scale bars: 0.2 mm except E, 0.3 mm and G, 0.05 µm. (PBI_OON 1946, 42186, 50045, 30844, 42226, 1934, 14826).

FIGURE 173. Orchestina spp., drawing of male palps. A. O . pandeazucar, paratype. B. O . cachai. C. O . pizarroi, holotype. D. O . granizo, holotype. E. O . jaiba, paratype, right palp. F. O . nahuelbuta, paratype, right palp. G. O . curico, holotype. H. O . quenies, paratype. I. O . caleta, holotype. Images E and F flopped for consistency. Scale bars: 0.1 mm. (PBI_OON 42184, 14826, 10557, 15058, 2308, 14871, 42335, 42182).

FIGURE 174. Orchestina spp., drawings of male palps, dorsal view. A. O . pandeazucar. B. O . cachai. C. O . granizo, holotype. D. O . jaiba, paratype. E. O . curico. F. O . quenies, paratype. G. O . nahuelbuta, right palp. H. O . caleta, holotype. I. O . pizarroi, holotype. Images D and G flopped for consistency. Scale bars: 0.1 mm. (PBI_OON 42184, 14876, 10557, 15058, 14871, 42335, 2308, 42182, 42238).

FIGURE 175. Orchestina spp., drawings of female genitalia, ventral view. A. O . pandeazucar, paratype. B. O . caleta, paratype. C. O . totoralillo, holotype. D. O . pizarroi, paratype. E. O . molles, paratype. F. O . cachai. Scale bars: 0.1 mm. (PBI_OON 42186, 30844, 50045, 42241, 1934, 14826).

FIGURE 177. Habitats of Orchestina in Chile. A–C. Seashore with succulent plants in Quebrada del Quereo, habitat of O . caleta. A, B. General views of the rocky coast with succulent plants. C. Beating succulent plants over a white plastic sheet. D. Trail with Tepualia stipularis in Parque Nacional Chiloé, habitat of O . cachai. Credits: A–C. Peter Michalik. D. Christian Wirkner.

FIGURE 178. Habitats of Orchestina in Chile (A–D) and Argentina (E–F). A. Totoralillo Norte (Elqui), type locality of O . totoralillo. B. Parque Nacional Pan de Azúcar (Huasco), type locality of O . pandeazucar. C. Caleta Chañaral de Aceituno (Huasco), type locality of O . caleta. D. Parque Nacional La Campana (Quillota), type locality of O . granizo. E. Las Tumanas (San Juan), type locality of O . andianavarroi. F. One of the localities where O . jaiba can be found in Parque Nacional Nahuel Huapi, Argentina. Photos by A. Jaime Pizarro. B, C, F. Martín Ramírez. E. J.M. Andia-Navarro.