Pseudodysderina desultrix (Keyserling) Platnick & Berniker, 2013

Platnick, Norman I. & Berniker, Lily, 2013, ffie South American Goblin Spiders of the New Genera Pseudodysderina and Tinadysderina (Araneae, Oonopidae), American Museum Novitates 2013 (3787), pp. 1-44 : 7-14

Pseudodysderina desultrix (Keyserling) , new combination

Figures 1–72

Oonops desultrix Keyserling, 1881: 301 , fig. 21 (female holotype from “ Pumamaria ” [presumably the famous archeological ruins at Pumamarca, Cusco], Peru, supposedly deposited in University of Warsaw collection, lost).

Dysderina desultrix: Simon, 1893: 304 .

DIAGNOSIS: Males resemble those of P. yungas and P. manu but differ from those of the former by lacking a dorsal lobe on the tip of the conductor and from those of both species by having a thicker embolus (figs. 65–67); females differ from those of both species by having a much less expanded tip on the anterior genitalic process (figs. 71, 72). Both sexes have submarginal denticles on the carapace (fig. 2) that are absent in P. yungas .

MALE (PBI_OON 10053, figs. 1–30, 61–68): Total length 1.98. Surface of elevated portion of pars cephalica appearing finely reticulate; lateral margin with blunt denticles. ALE separated by less than their radius. Postepigastric scutum long, almost rectangular, extending to nearly full length of abdomen. Leg spination: femur I p0-0-2, r1-1-0; tibiae: I v4-4-2; II v4-4-0; metatarsi: I v2-1p-2; II v2-0-2. Embolus short, narrow, bent at about two-thirds its length, conductor with slight prolateral projection at base, wider retrolateral projection near tip.

FEMALE (PBI_OON 10053, figs. 31–60, 69–72): Total length 2.27. Dorsal scutum covering more than 3/4 of abdomen length, more than 1/2 to most of abdomen width, not fused to epigastric scutum. Postepigastric scutum almost semicircular, extending to about 3/4 of abdomen length, fused to epigastric scutum. Leg spination: femora I, II p0-0-2, r1-1-1; tibiae: I v4-4-2; II v4-4-1p; metatarsi I, II v2-1p-2. Genital atrium wide, semicircular, posterior portion with transverse sclerotization visible through cuticle.

OTHER MATERIAL EXAMINED: Brazil: Amazonas: Base de Operações Geólogo Pedro de Moura, Porto Urucu , 04°45′48″S, 65°02′41″W, Coari, July 5, 2006 (S. Dias, L. Miglio, C. Santos, MPEG 19211 , PBI_OON 40344), 1♀ , 04°48′23″S, 65°02′05″W, Coari, July 8, 2006 (S. Dias, L. Miglio, C. Santos, MPEG 19212 , PBI_OON 40343), 1♀ , 04°50′30″S, 65°03′51″W, Coari, Sept. 4, 2006 (S. Dias, D. Candiani, N. Lo Man Hung, C. Santos, MPEG 19213 , PBI_OON 40342), 1♀ , 04°52′07.6″S, 65°15′53.6″W, Coari, Aug. 13, 2003 (A. Bonaldo, MPEG 10234 , PBI_OON 43657), 1♀ , same (J. Dias , MPEG 10246 , PBI_OON 43658), 1♀ . Colombia: Amazonas: Isla Mocagua , Nov. 7, 2004, elev. 75 m (L. Benavides, G. Giribet, ICN 4109 , PBI_ OON 49904), 1♂ ; Leticia , June 18, 1965, in dry cut grass (P. Craig, J. Robb, CAS 26327, PBI_OON 2734), 1♂ . Ecuador: Pastaza: Mera , June 30, 1971, beaten from rotten foliage and debris, elev. 1200 m (B. Malkin, FMNH 56512 , PBI_OON 10754), 1♂ . Zamora-Chinchipe: Bombuscaro, Parque Nacional Podocarpus, El Mirador Trail , Feb. 26–Mar. 4, 2009, elev. 1000 m (M. Pollett, A. De Braekeleer, KBIN PBI_OON 49919), 1♂ ; Los Tayos , July 8, 1976 (T. de Vries, QCAZ PBI_OON 10779), 2♂ ; Reserva Biológica San Francisco, Atajo Trail , 3°58′30″S, 79°04′25″W, Feb. 18–25, 2009, elev. 2000 m (M. Pollett, A. De Braekeleer, KBIN PBI_OON 49917), 1♂, 1♀ , same except Feb. 25–Mar. 3, 2009 ( KBIN PBI_OON 49918), 1♀ ; Reserva Biológica San Francisco, Canal Trail , 3°58′30″S, 79°04′25″W, Feb. 13–18, 2009, elev. 2000 m (M. Pollett, A. De Braekeleer, KBIN PBI_OON 49908–49910), 4♂, 2♀ , same except Feb. 18–25, 2009 (KBIN PBI_OON 49911–49914), 6♂ , same except Feb. 25–Mar. 3, 2009 (KBIN PBI_OON 49916, 49917), 2♂ . Peru: Cajamarca: Santuario Nacional Tabaconas-Namballe , Mar. 2008 (S. Castro, MELM PBI_OON 14913), 1♂ . Cusco: Camisea Lote 58, Bajo Urubamba , Dec. 2006 (S. Castro, MELM PBI_OON 15052), 1♂, 1♀ ; Cashiari 2, Río Camisea , 11°51′51.3″S, 72°46′45.6″W, Sept. 2, 1997, pitfall trap, elev. 580 m (S. Córdova, MUSM 1461 , PBI_OON 49894), 1♀ ; Consuelo, Manu Road , km 165, all collected by L. Watrous, G. Mazurek, Oct., 1, 1982, leaf litter ( FMNH 33580 , PBI_OON 10087), 1♂ , litter under crown of felled tree ( FMNH 33561 , PBI_OON 10068), 2♂ , litter under rotten palp ( FMNH PBI_OON 38397), 1♂ , litter at rotten logs ( FMNH PBI_OON 38341), 1♂ , Oct. 4, 1982, leaf litter ( FMNH 33580 , PBI_OON 10644), 1♀ , Oct. 5, 1982, rotten palm ( FMNH PBI_OON 38395), 2♂ , Oct. 6, 1982, rotten palm ( FMNH 33559 , PBI_OON 10066), 1♀ , Oct. 8, 1982, leaf litter ( FMNH PBI_OON 38393), 2♂ , Oct. 10, 1982, leaf litter ( FMNH PBI_OON 38401), 1♂, 4♀ , Oct. 12, 1982, leaf litter ( FMNH PBI_OON 38392, 38400), 1♂, 3♀ , same, rotten palm ( FMNH 33546 , PBI_OON 10053), 1♂, 1♀ , Oct. 13, 1982, leaf litter ( FMNH PBI_OON 10551, 38394), 2♂, 4♀ ; La Convención , 12°19′21.26″S, 73°02′44.08″W, Apr. 23, 2007, elev. 790 m (W. Paredes, MUSM 501285 , PBI_ OON 49901), 1♀ ; Mangoriari, Río Bajo Urubamba , 12°21′S, 73°02′W, Dec. 11, 2002, pitfall traps, elev. 1500 m (J. Grados, MUSM 501594 , PBI_OON 49898), 2♀ ; Pagoreni, Río Camisea , 11°42′22.5″S, 72°54′10.7″W, May 7–28, 1998, pitfall traps, elev. 465 m (S. Córdova, MUSM 501431 , PBI_OON 49895), 1♂, 1♀ ; Paratori , Oct. 25, 2002, pitfall trap (J. Grados, MUSM 500792 , PBI_OON 49897), 1♀ ; Paucartambo, Wayquecha , 13°10′40.63″S, 71°35′20.64″W, Sept. 26–30, 2008, pitfall trap, elev. 2875 m (D. Silva, MUSM 501061 , PBI_OON 49900), 1♀ ; Quebrada Mabe, Quispicanchis , Aug. 2008, montane forest (M. Vasquez, MELM PBI_OON 15051), 1♂ ; Reserva Communal Matsigenga , La Convención, 12°10′20.98″S, 73°02′32.48″W, Aug. 13, 2007, malaise trap, elev. 580 m (A. Asenjo, MUSM 501484 , PBI_OON 49896), 1♀ ; Wayrapata, Río Apurimac, 12°51.3′S, 73°30.1′W, July 29–Aug. 11, 1998, pitfall trap, elev. 2320 m (J. Duarez, S. Córdova, MUSM 501451 , PBI_OON 49899), 1♀ . Loreto: Estirón, Río Ampiacu , Nov. 13–Dec. 9, 1961 (B. Malkin, AMNH PBI_OON 106, 114), 1♂, 2♀ , May 15–22, 1966, beating dry foliage from trees (B. Malkin, AMNH PBI_OON 38072), 3♂ ; Pithecia, Río Samiria , 5°15′S, 74°40′W, May–June 1990, fogging, elev. 130 m (T. Erwin et al., MUSM PBI_OON 49926), 28♂, 54♀ ; near Pithecia , 5°11′S, 74°42′W, May–June 1990 (T. Erwin, D. Silva, MUSM PBI_OON 49920, 49922), 3♂, 18♀ ; Ramón Castilla, 5 km NW Leticia, Colombia , Feb. 23, 1972, Berlese, forest litter, edge of Río Amazonas (S., J. Peck, AMNH PBI_OON 1227), 1♂, 3♀ ; Río Samiria, Cocha Shinguito , 5°08′S, 74°45′W, May–June 1990, fogging, elev. ca. 100 m (T. Erwin et al., MUSM PBI_OON 49921), 1♂ . Madre de Dios: Cuenca del Río Los Amigos, Manu , Aug. 31, 2005, floodable forest (M. Daza, MELM PBI_OON 14980), 1♂ ; Cuzco Amazonica , 12°36′48″S, 69°02′06″W, May 17, 1995, secondary forest, elev. 300 m (D. Agosti, AMNH PBI_OON 105), 2♂, 1♀ ; Reserva Nacional Tambopata , 12°50′S, 69°17′W, Oct. 24–25, 1982, rotten palm flowers (L. Watrous, G. Mazurek, FMNH PBI_OON 38404, 38405, 38411, 49923), 2♂, 5♀ , Oct. 28, 1982, bamboo litter (L. Watrous, G. Mazurek, FMNH PBI_OON 10384), 5♂, 4♀ , litter under crown of fallen tree (L. Watrous, G. Mazurek, FMNH PBI_OON 10606), 1♂, 2♀ , June 7–9, 1988, elev. 290 m (J. Coddington, USNM PBI_ OON 27865, 27867), 2♂ , Oct. 29, 2000 (A. de la Cruz, MUSM 1479 , PBI_OON 49924), 1♀ ; Zona Reservado de Manu, Quebrada El Pachira , ca. 5 mi upstream from Pakitza, 11°58′S, 71°18′W, Oct. 4, 1987 (D. Silva, J. Coddington, USNM PBI_OON 27866), 1♀ .

DISTRIBUTION: Widespread in the Amazonian portions of Colombia, Ecuador, Peru, and Brazil.

Figures

FIGURES 1–15. Pseudodysderina desultrix (Keyserling), male. 1. Carapace, dorsal view. 2. Same, lateral view. 3. Same, anterior view. 4. Chelicerae, anterior view. 5. Same, posterior view. 6. Labium and endites, ventral view. 7. Labrum and endites, dorsal view. 8. Palp, prolateral view. 9. Palp, retrolateral view. 10. Palpal tibia, dorsal view. 11. Sternum, ventral view. 12. Spinnerets, apical view. 13. Anterior lateral spinneret, same. 14. Posterior median spinneret, same. 15. Posterior lateral spinneret, same.

FIGURES 16–30. Pseudodysderina desultrix (Keyserling), male. 16. Sperm pore, ventral view. 17. Claws of leg I, lateral view. 18. Same, leg II. 19. Same, leg III. 20. Same, leg IV. 21. Claws of leg I, apical view. 22. Same, leg II. 23. Same, leg III. 24. Same, leg IV. 25. Trichobothrial base from metatarsus III, dorsal view. 26. Tarsal organ from leg I, dorsal view. 27. Same, leg II. 28. Same, leg III. 29. Same, leg IV. 30. Same, palp.

FIGURES 31–45. Pseudodysderina desultrix (Keyserling), female. 31. Carapace, dorsal view. 32. Same, lateral view. 33. Same, anterior view. 34. Chelicerae, anterior view. 35. Same, posterior view. 36. Labium and endites, ventral view. 37. Labrum and endites, dorsal view. 38. Palp, prolateral view. 39. Palp, retrolateral view. 40. Palpal tibia, dorsal view. 41. Sternum, ventral view. 42. Spinnerets, apical view. 43. Anterior lateral spinneret, same. 44. Posterior median spinneret, same. 45. Posterior lateral spinneret, same.

FIGURES 46–60. Pseudodysderina desultrix (Keyserling), female. 46. Epigastric area, ventral view. 47. Internal genitalia, dorsal view. 48. Claws of leg I, lateral view. 49. Same, leg II. 50. Same, leg III. 51. Same, leg IV. 52. Claws of leg I, apical view. 53. Same, leg II. 54. Same, leg III. 55. Same, leg IV. 56. Tarsal organ from leg I, dorsal view. 57. Same, leg II. 58. Same, leg III. 59. Same, leg IV. 60. Same, palp.

FIGURES 61–72. Pseudodysderina desultrix (Keyserling), male (61–68) and female (69–72). 61. Sternum, ventral view. 62. Left palp, prolateral view. 63. Same, ventral view. 64. Same, retrolateral view. 65. Left embolus, prolateral view. 66. Same, ventral view. 67. Same, retrolateral view. 68. Labium and endites, ventral view. 69. Abdomen, ventral view. 70, 71. Female genitalia, ventral view. 72. Same, dorsal view.