Paradysderina tabaconas, Platnick & Dupérré, 2011

Platnick, Norman I. & Dupérré, Nadine, 2011, The Andean Goblin Spiders Of The New Genera Paradysderina And Semidysderina (Araneae, Oonopidae), Bulletin of the American Museum of Natural History 2011 (364), pp. 1-121 : 43-47

Paradysderina tabaconas , new species Figures 291–304

TYPES: Male holotype and female allotype from Santuario Nacional Tabaconas-Namballe, Cajamarca, Peru (Mar. 2008; S. Castro), deposited in MELM (PBI_OON 14921) .

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

DIAGNOSIS: Males have a distinctively scoop-shaped embolus (figs. 295, 297); females have large, triangular anterior genitalic elements that extend far anterior of the anterior atrial margin (figs. 302–304).

MALE (PBI_OON 576, figs. 291–298): Total length 1.76. Elevated portion of pars cephalica appears reticulate. Chilum small, rectangular. Anterior ledge of paturon with dorsally directed projection on median edge; inner margin with long, heavily sclerotized spine. Endites anteriorly with two short, curved, clawlike processes. Leg spination: femur I p0-0-1; tibiae: I v4-4-0, II v3-4-0; metatarsi: I v2-2-1p, II v2-2-0. Palps symmetrical; embolus scoop shaped.

FEMALE (PBI_OON 576, figs. 299–304): Total length 1.85. Chilum reduced to tiny triangle. Postepigastric scutum only around epigastric furrow, fused to epigastric scutum, seam present between posterior spiracles and lateral edge of scutum, but not between posterior spiracles. Leg spination: femora: I p0-0-2, II p0-0-1; tibiae: I v4-4-2, II v4-4-1p; metatarsi I, II v2-2- 1p. Anterior process large, triangular, extending far anterior of anterior atrial ridge.

OTHER MATERIAL EXAMINED: Peru: Cajamarca: San Ignacio, Santuario Nacional Tabaconas-Namballe , Oct. 2007 (S. Castro, MELM PBI_OON 14919), 38, 8♀ ; Santuario Nacional Tabaconas-Namballe , Mar. 2008 (S. Castro, MELM, MACN, AMNH PBI_OON 576), 128, 16♀ .

DISTRIBUTION: Peru (Cajamarca).

Paradysderina montana (Keyserling) , new combination Figures 305–318

Oonops montanus Keyserling, 1883: 221 , pl. 15, fig. 18 (female holotype from ‘‘Montana di Naucho,’’ Peru, lost).

Dysderina montana: Petrunkevitch, 1911: 125 .

NOTE: The female holotype was taken at an elevation of 8,000 ft at ‘‘Montana di Naucho’’; according to Levi (1986: 159), this locality is in the mountains far enough east of Pacasmayo to be in Cajamarca, Peru. The type was said to be deposited in the collection of the University of Warsaw, but is not currently in that collection ( Dominika Mierzwa, in litt.) or with the Keyserling material in BMNH, and is either lost or destroyed. Although Keyserling’s description is brief, he thought the species to be closest to his species Oonops globosus (which is transferred to Paradysderina below), the sternum is said to be fairly flat, the distance between the posterior border of the postepigastric furrow and the spinnerets is said to be twice the length of the postepigastric scutum, and Keyserling’s genitalic figure suggests that an epigastric ridge is present anterior to the genital atrium. All these features suggest strongly that Keyserling’s specimen belongs to Paradysderina ; we have chosen to assign the name to this species from Cajamarca, as it is the species known today from this area that most closely resembles Keyserling’s figure.

DIAGNOSIS: This species is sympatric with P. tabaconas ; males can easily be distinguished by the more elongate embolus (figs. 309, 311), females by the narrower anterior genitalic elements (figs. 317, 318).

MALE (PBI_OON 14918, figs. 305–312): Total length 1.97. Elevated portion of pars cephalica appears reticulate. Chilum small, triangular. Anterior ledge on paturon with only slight indication of tubercle on inner edge, inner margin flattened but with only slight anterior spine. Endites with dorsal process longer than ventral process. Leg spination: femur I p0-0-2; tibiae: I v4-4-1p, II v4-4-0; metatarsi: I v2-2-1p, II v2-2-0. Palps symmetrical; embolus with basal portion directed ventrally, distal portion with two sharply pointed prongs.

FEMALE (PBI_OON 14918, figs. 313– 318): Total length 1.83. Postepigastric scutum covering about one-third of abdomen length, fused to epigastric scutum. Leg spination: femur I p0-0-2; tibiae I, II v4-4- 1p; metatarsi I, II v2-2- 1p. Posterior margin of genitalic atrium rebordered; anterior genitalic process relatively short, wide, originating from oval base.

MATERIAL EXAMINED: Peru: Cajamarca: San Ignacio, Santuario Nacional Tabaconas- Namballe , Oct. 2007 (S. Castro, MELM PBI_OON 14918), 38, 3♀ ; Santuario Nacional Tabaconas-Namballe , Mar. 2008 (S. Castro, MELM, MACN, AMNH PBI_OON 14828, 14912), 168, 7♀ .

DISTRIBUTION: Peru (Cajamarca).

Figures

Figs. 291–304. Paradysderina tabaconas, new species, male (291–298) and female (299–304). 291. Carapace, dorsal view. 292, 299. Same, anterior view. 293. Sternum, ventral view. 294. Mouthparts, ventral view. 295. Left embolus, retrolateral view. 296. Left palp, prolateral view. 297. Same, ventral view. 298. Same, retrolateral view. 300. Abdomen, lateral view. 301. Same, ventral view. 302, 303. Epigastric region, ventral view. 304. Same, dorsal view.

Figs. 305–318. Paradysderina montana (Keyserling), male (305–312) and female (313–318). 305. Carapace, dorsal view. 306, 313. Same, anterior view. 307. Sternum, ventral view. 308. Mouthparts, ventral view. 309. Left embolus, retrolateral view. 310. Left palp, prolateral view. 311. Same, ventral view. 312. Same, retrolateral view. 314. Abdomen, lateral view. 315. Same, ventral view. 316, 317. Epigastric region, ventral view. 318. Same, dorsal view.