Orchestina curico 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 curico Izquierdo , new species

Figures 164F , 166D–F , 169C , 171C , 173G , 174E , 176C , map 30

TYPES: Male holotype from Chile: Región del Maule (VII): Provincia de Curicó: 20 km E. Potrero Grande, Fdo. El Coihue , fogging in Nothofagus dombeyi, Cypres , 937 m, -35.178983°, -70.963333°, May 25, 2004, J.E. Barriga, deposited in MNSC, PBI_OON 14871 ; same data, 1035 m, -35.17889°, -70.96333°, May 25, 2004, J.E. Barriga, 1 female paratype deposited in MACN 17659, PBI_OON 14875 ; Región del Biobío (VIII): Provincia de Ñuble: North of Las Trancas, Puente Aserradero , fogging in Nothofagus dombeyi, 1274 m , -36.91645°, -71.45695°, Dec. 01, 2001, E. Arias et al., 3 female paratypes deposited in CAS 9023357, PBI_OON 2311 ; same data, 1 female paratype deposited in CAS, PBI_OON 43334 .

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

DIAGNOSIS: Males are very similar to those of other species with simple palp; the endites are parallel as in O. nahuelbuta and O. cachai , although in O. curico they are slightly wider and with small projections at the tip (fig. 164F). Other subtle differences are present in the male copulatory bulb, such as the sperm duct course and the length and width of the embolus (figs. 166D–F, 173G, 174E). Female genitalia are similar to those of O. nahuelbuta but can be distinguished by the position of the external pockets, proximal to the epigastric fold (anteriorly directed in O. nahuelbuta ).

MALE (PBI_OON 14871): Total length 1.08.

CEPHALOTHORAX: Labium nearly pentagonal. Endites converging, with small projection at the tip (fig. 164F). ABDOMEN: Dorsum with pattern of purple bands, round. Epigastric area dark. LEGS: Only left leg I, right legs II, III present. GENITALIA: Bulb with no additional apophyses; embolus long; sperm duct slightly coiled (figs. 166D–F, 173G, 174E).

FEMALE (PBI_OON 43334): Total length 1.12.

CEPHALOTHORAX: Labium rectangular.

ABDOMEN: Ovoid, dorsum soft portions bands of purple pigment. LEGS: Only right leg IV is present. GENITALIA: Epigastric region with external pockets, small epigastric ridges, difficult to see, placed on median region, internal pockets absent; anterior receptaculum with lumen formed by two chambers, apodemes long; posterior receptaculum absent, posterior apodeme formed by entire plate (figs. 169C, 171C, 176C).

DISTRIBUTION: From Región del Maule (VII) to Región del Biobío (VIII), Chile (map 30).

OTHER MATERIAL EXAMINED: Región del Maule (VII): Provincia de Curicó: Camino El Relvo, 15 km E Potrero Grande, -35,190907°, -70,9228267°, 1000 m, May. 13, 2004, J.E. Barriga, fogging on N. obliqua and N. dombeyi , 1♀ (MACN 34533, PBI_OON 51169).

Figures

FIGURE 164. Orchestina spp., comparison of endites and labium of males. A. O . cachai. B. O . jaiba. C. O . pandeazucar. D. O . granizo. E. O . nahuelbuta. F. O . curico. G. O . quenies. Arrows point to the modification of endites. Scale bars: 0.2 mm. (PBI_OON 42203, 42186, 10557, 2309, 14871, 42335).

FIGURE 166. Orchestina spp., male palps. A–C. O . quenies paratype. D–F. O . curico, holotype. G–I. O . granizo, holotype. A, D, G. Prolateral. B, E, H. Dorsal. C, F, I. Retrolateral. Arrows point to the constriction near the base of embolus. Scale bars: 0.2 mm. (PBI_OON 42335, 14871, 10557).

FIGURE 169. Orchestina spp., female genitalia, ventral view. A. O . jaiba. B. O . osorno, holotype. C. O . curico, paratype. D. O . nahuelbuta, holotype. Abbreviation: SM, sclerotized margins in the epigastric area. Arrows point to the external pockets; asterisks show the sclerotized ridges in the epigastric fold area. Scale bars: 0.2 mm. (PBI_OON 42251, 51091, 2311, 2304).

FIGURE 171. Orchestina spp., cleared female genitalia, ventral view. A. O . jaiba, paratype. B. O. osorno, holotype. C. O . curico, paratype. D. O . nahuelbuta, holotype. Scale bars: 0.2 mm. (PBI_OON 14808, 51091, 2311, 2304).

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 176. Orchestina spp., drawings of female genitalia, ventral view. A. O . jaiba, paratype. B. O. osorno, holotype. C. O . curico, paratype. D. O . nahuelbuta, holotype (PBI_OON 2304). E. O . quenies. Arrows point to external pockets, asterisks to epigastric ridges. Scale bars: 0.1 mm. (PBI_OON 14808, 51091, 2311, 1946).