Orchestina sp.

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 sp. : Burger et al., 2010: 102.

TYPES: Male holotype from Argentina: Jujuy: Departamento Ledesma: Parque Nacional Calilegua , Seccional Aguas Negras , 605 m, -23.76194°, -64.85111°, Jan. 27, 2009, to Jan. 31, 2009, M. Izquierdo, L. Zapata and M. Akmentins, deposited in MACN 30751, PBI_OON 42754 ; same data, 1 male, 7 females, 13 juvenile paratypes deposited in MACN 18016, PBI_OON 14895 ; same data, 800 m, El Cortaderal, Km 6, Dec. 18, 1987, to Dec. 28, 1987, S. and J. Peck, 1 male paratype deposited in AMNH, PBI_OON 1654 .

ETYMOLOGY: The specific name is a noun in apposition taken from the ucumar , which means “bear” in Quichua and Aymara languages. The term has been associated with the spectacled bear ( Tremarctos ornatus ), which may be responsible for the legendary ucumar , a Bigfoot-like creature, half man half bear, that snatches away women and forces them to live with him in his cave.

DIAGNOSIS: Males can be distinguished by the combination of a strongly projected clypeus (fig. 179B), long chelicerae (fig. 179C) and the short embolus flanked by a short apophysis (figs. 184A–E, 194A–C, 196A, C). Females can be distinguished by the presence of two depressions on the epigastric region, slightly below the booklung covers (figs. 195A, LD in 197C), by the shape of the anterior receptaculum, massive anteriorly with a basal, less sclerotized additional chamber with sinuous lumen (figs. 195D, 197C).

MALE (PBI_OON 14895): Total length 1.2. Habitus as in figure 179A–C. CEPHALOTHO- RAX: Clypeus strongly sloping forward in lateral view (fig. 179B). Sternum as in figure 179D. Chelicerae long (fig. 179C, 181). Labium rectangular (fig. 180C, F). Labrum small with one dorsal setae (fig. 180B). Endites anteromedian tip with one strong, curved projection (fig. 180A, D, E).

LEGS: Orange. Leg spination, metatarsi: IV d0-0-1; p0-0-1; r0-0-1; tarsal organs, trichobothria as described for genus (fig. 183). GENITA- LIA: Bulb yellow to pale orange, tapering apically; embolus short, with short projection near base; sperm duct slightly coiled (figs. 184, 194A–C, 196A, C, E).

FEMALE (PBI_OON 14895): Total length 1.5. Habitus as in figure 179E–G. CEPHALOTHO- RAX: Clypeus not strongly projected forward. Chelicerae comparatively shorter than in males.

ABDOMEN: Dorsum soft portions yellow. Spinnerets: ALS with two spigots (SEM not provided). LEGS: Spination, metatarsi: IV d0-0-1; p0-0-1; r0-0-1. Tarsal organ, trichobothria, palp as described for the genus (fig. 182A–G). Metatarsus, tarsus II with modified setae on prolateral margin (fig. 182H, I). GENITALIA: As in diagnosis, without external or internal pockets; anterior apodemes short; posterior receptaculum absent, posterior apodeme formed by entire plate (figs. 185A–F, 195A, D, 197C).

NATURAL HISTORY: The reproductive behavior of this species has been studied by Burger et al. (2010). The different steps of the behavior are not complex and the position during copulation is similar to other haplogynes in which the male is placed below the female with the clypeus facing the females’ sternum. Both palps are inserted simultaneously.

DISTRIBUTION: Known from Brazil (Minas Gerais), Bolivia (Chuquisaca), and northern Argentina (Jujuy and Formosa provinces) (fig. 198C, D, map 28 ).

OTHER MATERIAL EXAMINED: BOLIVIA: Chuquisaca: Tomina: Municipio de Padilla, Comunidad de Pedernal , 1369 m, -19.39861°, -64.09166°, Oct. 06, 2011, to Oct. 09, 2011, M. Izquierdo, 13 (CBFC PBI _OON 42276). BRAZIL: Minas Gerais: Belo Horizonte: Estação Ecológica da UFMG, -19.86666°, -43.96666°, Oct. 01, 2000, E.S.S. Alvares, 13, 1♀ ( IBSP 66802 , PBI _OON 42234) ; same data, 1♀ ( IBSP 67297 PBI _OON 42658). Marliéria: Parque Nacional da Serra do Cipó, Serra do Cipó , -19.25000°, -43.51666°, Jan. 01, 2002, to Jan. 01, 2003, A.D. Brescovit, 1♀ ( IBSP 68326 , PBI _OON 30291) ; same data, 1♀ ( IBSP 68337 PBI _OON 30379) ; same data, 13 ( IBSP 68327 , PBI _OON 30775). ARGEN- TINA: Provincia de Jujuy: Departamento de Ledesma: Calilegua Nat. Pk., 550 m, Aguas Negras , camp, Dec. 18, 1987, to Dec. 28, 1987, S. and J. Peck, 13 ( AMNH, PBI _ OON 1657 ) ; same data, 900 m, Estaca El Cero , Dec. 18, 1987, to Dec. 28, 1987, S. and J. Peck, 1♀ ( AMNH, PBI _ OON 1656 ) ; same data, Aguas Negras section, 605 m, -23.76194°, -64.85111°, Dec. 06, 2008, to Dec. 11, 2008, Grismado, Izquierdo, Labarque, Rubio, Burger, Michalik, Carrera, Ojanguren, Mattoni, 13 ( MACN 17718 , PBI _ OON 14879, voucher for TEM studies PM-41) ; same data, 1♀ ( MACN 18243 , PBI _OON 14890) ; same data, 1♀ ( MACN 17674 , PBI _OON 14905) ; same data, 1♀ ( MACN 17675 , PBI _OON 14907) ; same data, 1♀ ( MACN 17676 , PBI _OON 14908) ; same data, 13 ( MACN 17678 , PBI _OON 14922) ; same data, 13 ( MACN 17677 , PBI _OON 14924) ; same data, 13 ( MACN 17714 , PBI _OON 14882) ; same data, 1♀ ( MACN 18015 , PBI _OON 14896) ; same data, 1♀ ( MACN 18058 , PBI _OON 14900) ; same data, 1♀ ( MACN 18056 , PBI _OON 14909) ; same data, Feb. 20, 2013, G.D. Rubio, H.A. Iuri, A. Ojanguren, A. Porta, R. Adilardi, 1♀ ( MACN 29934 , PBI _OON 51088) ; same data, 2♀ ( MACN 29938 , PBI _OON 51114) ; same data, sobre el sendero El Pedemontano, altura km 2.5 de la Ruta Provincial Nº 83, 711 m, -23.750726, -64.855038, Aug. 5, 2010, M. Andía Navarro ( MACN 27210 , PBI _ OON 42755). Provincia de Formosa: Departamento de Bermejo: Reserva Natural Formosa, Seccional Rio Teuco , sendero Monte Adentro, 181 m, -24.31169°, -61.81236°, June 24, 2010, to July 06, 2010, Izquierdo, M., Calderón, L. and Kopuchian C., 13, 1♀, 2 juveniles, sex unknown ( MACN 29064 , PBI _OON 30496) .

Figures

MAP 28. Distribution map of Orchestina species in Bolivia, Brazil, and Argentina: O . grismadoi (triangle), O . moyuchi (square), and O . ucumar (circles).