Orchestina silvae 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 silvae Izquierdo , new species

Figures 106A, B , 111E , map 21

TYPES: Female holotype from Peru: Madre de Dios: Manu, Zona Reservada Pakitza , 356 m, -11.93333°, -71.28333°, June 01, 1992, T. Erwin, D. Silva, deposited in MUSM 501566, PBI_OON 43318 ; Loreto: Rio Samiria , -5.11666°, -75.46666°, May 01, 1990, to June 01, 1990, T. Erwin, D. Silva, 2 female paratypes deposited in MUSM, PBI_OON 43312 .

ETYMOLOGY: The specific name is a patronym in honor of Diana Silva, one of the collectors of the type material.

DIAGNOSIS: Females can be distinguished by having external pockets, placed near median region of the epigastric area and opened toward the sides, and by the shape of the anterior receptaculum with its wide anterior tip almost T-shaped (fig. 111E).

MALE: Unknown.

FEMALE (PBI_OON 43318): Total length 1.5. Habitus as in figure 106A, B. CEPHALOTHO- RAX: Carapace orange. Labium rectangular.

ABDOMEN: Pale white. GENITALIA: Epigastric region with two external pockets; anterior receptaculum with wide tip; posterior receptaculum present, posterior apodeme formed by entire plate (fig. 111E).

DISTRIBUTION: Known from Loreto and Madre de Dios, Peru (map 21).

OTHER MATERIAL EXAMINED: PERU: Madre de Dios: Provincia Manu: Zona Reservada Pakitza , leaf litter, 356 m, -11.93333°, -71.28333°, June 01, 1992, T. Erwin, D. Silva, 1♀ ( MUSM 501564 PBI _OON 43308) ; same data, 1♀ ( MUSM 501556 PBI _OON 43315). Provincia de Tambopata : 15 km E Puerto Maldonado, 200 m, -12.33000°, -69.02972°, July 18, 1989, D. Silva, 1♀ ( MUSM 504654 PBI _OON 42770) .

Figures

FIGURE 106. Orchestina spp., habitus of females. A–B. O . silvae, paratype. C, D. O . pakitza, holotype. E. O . madrededios, holotype. A, C. Dorsal. B, D, E. Lateral. Scale bars: 0.5 mm. (PBI_OON 43312, 51113, 42744).

FIGURE 111. Orchestina spp., drawings of female genitalia, ventral view. A. O . yanayacu, holotype. B. O . otonga, paratype. C. O . santodomingo, holotype. D. O . coari, holotype. E. O . silvae, paratype. F. O . cajamarca, paratype. G. O . losamigos, paratype. Scale bars: 0.1 mm. (PBI_OON 30745, 50047, 50048, 43338, 43312, 42768, 43303). Abbreviations: EP, external pocket; PA, posterior apodeme; PR, posterior receptaculum.