Orchestina totoralillo 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 totoralillo Izquierdo , new species

Figures 170D , 172D , 175C , 178A , map 29

TYPE: Female holotype from Chile: Región de Coquimbo (IV): Provincia de Elqui: Totoralillo Norte, in shrubs, elev. 199 m, -29.59250°, -71.26138°, July 13, 2009, M. Izquierdo, A. Ojanguren, J. Pizarro, F. Alfaro, deposited in MNSC, PBI_OON 30844.

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

DIAGNOSIS: Females resemble those of O. pandeazucar from which they can be distinguished by the shape of the lumen of the anterior receptaculum, with two wide chambers; the anterior apodemes slightly directed anteriorly; and the different position of the external pockets, near level of the anterior receptaculum tip (figs. 170D, 172D, 175C).

MALE: Unknown.

FEMALE (PBI_OON 30844): Total length 1.05.

CEPHALOTHORAX: Carapace yellow. Sternum yellow. Chelicerae, endites, labium yellow. Labium rectangular. ABDOMEN: Dorsum with bands of gray pigment (purple in fresh specimens). LEGS: Yellow. GENITALIA: Epigastric region with external pockets placed almost at level of anterior apodemes, with two weakly sclerotized epigastric ridges at both sides of median field, internal pockets absent; anterior receptaculum rounded at tip with anterior apodemes directed anteriorly; posterior receptaculum absent, posterior apodeme formed by entire plate (figs. 170D, 172D, 175C).

DISTRIBUTION: known only from the type locality in Chile (Elqui) (fig. 178A, map 29).

OTHER MATERIAL EXAMINED: None.

Figures

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 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 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.