Paradysderina vlad, 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 : 75-77

Paradysderina vlad , new species Figures 544–557

TYPE: Male holotype from humid forest litter taken at an elevation of 295 m at the Estación Científica Yasuni , 0.067428 ° S, 76.39764 ° W, Orellana, Ecuador (Dec. 1–5, 2009; M. Ramírez, Niarchos Exped. ), deposited in QCAZ (PBI_OON 30563) .

ETYMOLOGY: The specific name is a noun in apposition taken from Vlad the Impaler, referring to the paired extensions on the clypeus.

DIAGNOSIS: Male can easily be recognized by the paired extensions on the clypeus (figs. 544, 545), the strongly excavated and spined chelicerae (fig. 545), and the massive embolus (figs. 548–551); females have a distinctively long genitalic atrium and large, triangular anterior receptaculum (figs. 556, 557). The posterior femora are basally lightened in color.

MALE (PBI_OON 30589, figs. 544–551): Total length 1.41. Elevated portion of pars cephalica granulate. Chilum triangular, fused to clypeus, which has pair of triangular projections, each situated at about half of paturon width. Inner surface of paturon strongly excavated, bearing large, medially directed, heavily sclerotized spine. Endites with ventral process wide, long; dorsal process narrow, long. Leg spination: femur

I p0-0-1; tibiae I, II v4-3-0; metatarsi: I v2-2- 1p, II v2-2-0. Palps symmetrical; embolus with both flanges massive, intricately bent.

FEMALE (PBI_OON 30589, figs. 552– 557): Total length 1.47. 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 v2-2-1p, II v2-2-0. Anterior genitalic elements wide, triangular.

OTHER MATERIAL EXAMINED: Ecuador: Orellana: Estación Cientifica Yasuni, 0.067428 ° S, 76.39764 ° W, Dec. 1, 2009, leaf litter, elev. 200 m ( Niarchos Exped., AMNH PBI _OON 601), 18, 0.067111 ° S, 76.4002 ° W, Dec. 2, 2009, leaf litter, canopy tower ( Niarchos Exped., AMNH PBI _OON 604, 605), 5♀, Dec. 1–5, 2009, Berlese, humid forest litter, elev. 295 m (M. Ramírez, Niarchos Exped., MACN PBI _OON 30553, 30584, 30589), 38, 4♀, same, humid forest litter, Eva Gaublomme DNA vouchers (MACN PBI_OON 15092, 15103), 68, 1♀, 0 ° 409169S, 76 ° 249, 189W, Dec. 1–5, 2009, litter, pitfall, elev. 230 m (B. Baehr, Niarchos Exped., AMNH PBI _OON 602, 603), 2♀.

DISTRIBUTION: Lowland Amazonian Ecuador (Orellana).

Figures

Figs. 544–557. Paradysderina vlad, new species, male (544–551) and female (552–557). 544. Carapace, dorsal view. 545, 552. Same, anterior view. 546. Sternum, ventral view. 547. Mouthparts, ventral view. 548. Left palp, prolateral view. 549. Same, ventral view. 550. Same, retrolateral view. 551. Left embolus, retrolateral view. 553. Abdomen, lateral view. 554. Same, ventral view. 555, 556. Epigastric region, ventral view. 557. Same, dorsal view.