Prodysderina megarmata, Platnick & Dupérré & Berniker & Bonaldo, 2013

Platnick, Norman I., Dupérré, Nadine, Berniker, Lily & Bonaldo, Alexandre B., 2013, The Goblin Spider Genera Prodysderina, Aschnaoonops, And Bidysderina (Araneae, Oonopidae), Bulletin of the American Museum of Natural History 2013 (373), pp. 1-102 : 15

Prodysderina megarmata , new species

Figures 1–60 , 74–84

TYPE: Male holotype taken in cloud forest litter at an elevation of 1300 m at a site 17 km S of Las Tejerías and 12 km N of Tiara, Aragua, Venezuela (Aug. 8, 1987; S., J. Peck), deposited in AMNH ( PBI_OON 20 ) .

ETYMOLOGY: The specific name refers to the male palpal bulb, which resembles that of P. armata but is much larger.

DIAGNOSIS: Males resemble those of P. armata but have a much larger palpal bulb (figs. 77–79); females have a distinctively enlarged, rounded, sclerotized anterior portion of the posterior receptaculum (figs. 83, 84).

MALE (PBI_OON 20, figs. 1–30, 74, 77– 82): Total length 1.83. ALE separated by less than their radius. Sternum surface coarsely reticulate, microsculpture everywhere but front. Anterior portion of endites sharply pointed. Dorsal scutum not fused to epigastric scutum. Postepigastric scutum almost semicircular. Leg spination: femora: I p0-0-2, r1-1-1; II p0-0-1; tibiae: I v4-4-2; II v4-4-1p; metatarsi: I v2-2-1p; II v3-2-0. Embolus with distal prong about four times as long as proximal prong, sharply bent at about 1/4 its length.

FEMALE (PBI_OON 38040, figs. 31– 60, 75, 76, 83, 84): Total length 2.13. Sternum with additional tuberculate setal bases near anterior groove. Dorsal scutum covering 1/2 to 3/4 of abdomen length, more than 1/2 to most of abdomen width, fused to epigastric scutum. Postepigastric scutum widely hexagonal, covering about 1/3 of abdomen length. Leg spination: femora I, II p0-0-2, r1-1-1; tibiae: I v4-4-2; II v4-4-1p; metatarsi: I v2-2-2; II v3-2-0. Posterior margin of genital atrium with rounded posterior extension representing sclerotized portion of posterior receptaculum.

OTHER MATERIAL EXAMINED: Venezuela: Aragua: road to Choroní , 19 km N Maracay, Apr. 2, 1992, stream litter, elev. 4300 ft (L. Herman, AMNH PBI_ OON 979 ), 1♂ ; Rancho Grande , 15 mi N Maracay, Feb. 19–27, 1971, Berlese, forest litter, elev. 1000–1400 m (S., J. Peck, FMNH PBI _ OON 980 ), 1♀ ; Rancho Grande , 15 km N Maracay, Feb. 9– 27, 1971, Berlese, forest litter (S. Peck, AMNH PBI _OON 38040), 3♀ ; Tiara, ca. Cerro Niguel, Apr. 27, 1995, elev. 1400 m (J. Lattke, CAS PBI _ OON 2539 ), 1♀. Miranda: 35 km N Altagracia, Parque Nacional Guatopo, Agua Blanca , May 31, 1987, ravine litter, elev. 400 m (S., J. Peck, AMNH PBI _OON 38042), 1♂ .

DISTRIBUTION: Apparently widespread in northern Venezuela (from Me´rida to Miranda).

Figures

Figs. 1–15. Prodysderina megarmata, new species, 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. Left palp, prolateral view. 9. Same, retrolateral view. 10. Palpal tibia, dorsal view. 11. Sternum, ventral view. 12. Spinnerets, distal view. 13. Anterior lateral spinneret, same. 14. Posterior median spinneret, same. 15. Posterior lateral spinneret, same.

Figs. 16–30. Prodysderina megarmata, new species, male. 16. Epigastric region, 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, distal view. 22. Same, leg II. 23. Same, leg III. 24. Same, leg IV. 25. Trichobothrial base from metatarsus I, 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.

Figs. 31–45. Prodysderina megarmata, new species, female. 31. Carapace, dorsal view. 32. Same, lateral view. 33. Same, anterior view. 34. Chelicera, anterior view. 35. Same, posterior view. 36. Labium and endites, ventral view. 37. Labrum and endites, dorsal view. 38. Palp, prolateral view. 39. Same, retrolateral view. 40. Palpal tibia, dorsal view. 41. Sternum, ventral view. 42. Spinnerets, distal view. 43. Anterior lateral spinneret, same. 44. Posterior median spinneret, same. 45. Posterior lateral spinneret, same.

Figs. 46–60. Prodysderina megarmata, new species, female. 46. Epigastric region, ventral view. 47. 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, distal 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.

Figs. 74–84. Prodysderina megarmata, new species, male (74, 77–82) and female (75, 76, 83, 84). 74. Sternum and mouthparts, ventral view. 75. Abdomen, ventral view. 76, 83. Genitalia, ventral view. 77. Left palp, prolateral view. 78. Same, ventral view. 79. Same, retrolateral view. 80. Left embolus, prolateral view. 81. Same, ventral view. 82. Same, retrolateral view. 84. Genitalia, dorsal view.