Orchestina jaiba Izquierdo 2017, new species
Creators: name: Izquierdo, Matías Andrés
name: Ramírez, Martín J.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Oonopidae
Orchestina
Orchestina jaiba

description: Orchestina jaiba Izquierdo, new species   
Figures 162, 164B, 167A–C, 169A, 171A, 173E, 174D, 176A, 178F, map 31  
TYPES: Female holotype from Chile: Región de Los Lagos (X): Provincia de Osorno: Natl. Pk. Puyehue, Aguas calientes, 340 m, Dec. 13, 1998, to Dec. 17, 1998, M. Ramírez, L. Compagnucci, C. Grismado, L. Lopardo deposited in MNSC, PBI_OON 43295; same data, 2 female paratypes and 1 juvenile, sex unknown, deposited in MACN 15337, PBI_OON 14808. Argentina: Rio Negro: El Bolsón, Reserva Forestal Loma del Medio, -41.94388°, -71.56361°, Feb. 01, 2002, Paula Sackmann, 2 male paratypes and 2 juveniles, sex unknown, deposited in MACN 19298, PBI_OON 15058; same data, San Carlos de Bariloche, Parque Municipal Llao Llao, sendero a Villa Tacul, 841 m, -41.04389°, -71.54944°, Jan. 15, 2012, M. Guala, 2 female paratypes deposited in MACN 30753, PBI_OON 51195.  
 ETYMOLOGY: The specific name is a noun in apposition taken from the jaiba, a crab from the Pacific coast of Chile used in many typical dishes.   
 DIAGNOSIS: Males are very similar to those of O. granizo, O. quenies, O. curico, and O. nahuelbuta by the shape of the bulb and the embolus. They can be separated from the first by differences in the morphology of the copulatory bulb; the embolus is shorter in O. granizo, which also has a protuberance near the base of that structure. They can be separated from O. curico by subtle differences in the shape of the labium and the endites, which are more convergent in O. curico. From O. quenies they can be separated by the presence of a small projection at the anterior margin of both endites, absent in O. jaiba (compare fig. 164B, G). Similarly, they can be distinguished from O. nahuenbuta by differences in labium; endites and male copulatory bulb (see figs. 164–167). Of all these species, O. jaiba has the longest embolus. Females can be distinguished by the small, paired, sclerotized epigas- tric ridges near each other on the median line of abdomen, by the position of the external pockets, nearly at the level of the anterior apodemes of the anterior receptaculum, and by the shape of the anterior receptaculum, with lumen formed by three chambers (figs. 169A, 171A, 176A).   
MALE (PBI_OON 14871): Total length 1.09. Habitus as in figure 162A–C. CEPHALOTHO- RAX: Labium rectangular. Endites parallel (fig. 164B). ABDOMEN: Round, dorsum soft portions pale white, with pattern of lateral bands of purple pigment. GENITALIA: Without additional apophyses; embolus long; sperm duct slightly coiled (figs. 167A–C, 173E, 174D).  
FEMALE (PBI_OON 14808): Total length 1.5.  
ABDOMEN: Ovoid, dorsum soft portions without color pattern. GENITALIA: As in diagnosis, internal pockets absent; anterior receptaculum with rounded tip; posterior receptaculum absent, posterior apodeme formed by entire plate (figs. 169A, 171A, 176A).  
DISTRIBUTION: Chile (Regions VII, IX and X) and Argentina (Rio Negro and Neuquén provinces) (fig. 178F, map 31).  
 OTHER MATERIAL EXAMINED: CHILE: Región del Maule (VII): Provincia de Curicó: El Coihue, 20 km E Potrero Grande, 1000 m, -35.18776°, -70.97105°, Apr. 01, 2003, J.E. Barriga, 1♀ (CAS 9021109, PBI _ OON 2310). Región de La Araucanía (IX): Provincia de Cautín: P.N. Conguillio, 11.1 km SE Laguna Captrén guard sta., Nothofagus obliqua, N. alpina, dense Chusquea, 1080 m, -38.66750°, -71.62016°, Dec. 23, 1996, to Feb. 05, 1997, A. Newton, M. Thayer, 1♀ (FMNH, PBI _OON 43290); P.N. Huerquehue, exit, Nothofagus dombeyi, 823 m, -39.16944°, -71.72638°, Dec. 11, 2001, E. Arias et al., 13 (CAS 9023361, PBI _ OON 2305); Provincia de Malleco: Nahuelbuta Natl. Pk., Nothofagus and Araucaria forest, 1100 m, -37.82750°, -73.00888°, Feb. 12, 2005, M. Ramírez and F. Labarque, 1♀ (MACN 15338, PBI _OON 14858). Región de Los Rios (XIV): Provincia de Valdivia: Reserva Costera Valdiviana, -40.125866°, -73.561706°, 634 m, Jan.2007, J.E. Barriga, Fogging, 9♀, 63, 28 juveniles (UCB, PBI _OON 51155). ARGENTINA: Provincia de Rio Negro: Departamento de Bariloche: El Bolsón, Reserva Forestal Loma del Medio, -41.94388°, -71.56361°, Feb. 01, 2002, Paula Sackmann, 23, 2 juveniles, sex unknown (MACN 19298, PBI _OON 15058); same data, Jan. 01, 2004, Paula Sackmann, 1♀ (MACN 27953, PBI _OON 15061); Nahuel Huapi N. Park, peatbog next to Frías Lake, 772 m, -41.04055°, -71.80527°, Dec. 29, 2010, M. Ramírez, V. Werenkraut, S. Aisen, 1♀ (MACN 28667, PBI _ OON 42153); San Carlos de Bariloche, Parque Municipal Llao Llao, sendero a Villa Tacul, 841 m, -41.04389°, -71.54944°, Jan. 15, 2012, beating vegetation, M. Guala, 1♀ (MACN 28668, PBI _OON 42251). Provincia de Neuquén: Departamento de Los Lagos: P.N. Nahuel Haupi, sendero a Cerro La Mona, cerca de Lago Espejo Chico, 840 m, -40.59083°, -71.70417°, Jan. 05, 2011, M.J. Ramírez and V. Werenkraut, 13, 1♀ (MACN 30503, PBI _OON 42188).
description: Published as part of 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), pp. 1 in Bulletin of the American Museum of Natural History 2017 (410) on page 1, DOI: 10.1206/0003-0090-410.1.1, http://zenodo.org/record/5405613