Paradysderina malkini, 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 : 23-26

Paradysderina malkini , new species Figures 119–131

TYPES: Male holotype and female allotype taken at an elevation of 2000 m at Torentoy Canyon, base of Machu Picchu, Cusco, Peru (June 16–17, 1964; B. Malkin), deposited in AMNH (PBI_OON 37876) .

ETYMOLOGY: The specific name is a patronym in honor of the collector of the types, Borys Malkin.

DIAGNOSIS: Males can easily be recognized by the long, narrow, sharply recurved embolus (figs. 122–125), females by the rectangular base of the anterior genitalic process, which occupies most of the genital atrium (figs. 129–131).

MALE (PBI_OON 37876, figs. 119–125): Total length 1.89. Elevated portion of pars cephalica granulate. Chilum small, triangular, reflexed under clypeus. Paturon with sharp anterior prong directed dorsally and smaller, more basally situated, heavily sclerotized prong, also directed dorsally. Endite processes both short, wide, with tips directed medially. Leg spination: femora I p0-0-2; tibiae: I v4-4-2, II v4-4-1p; metatarsi: I v2-2- 1p, II v2-2-0. Palps symmetrical; embolus ventral flange short, sharply pointed, dorsal flange much longer, recurved, forming backward C-shaped structure.

FEMALE (PBI_OON 37876, figs. 126– 131): Total length 2.17. Chilum almost rectangular. Postepigastric scutum extending about one-third of abdominal length, fused to epigastric scutum. Leg spination: femora: I p0-0-2, II p0-0-1; tibiae: I v4-4-2, II v4-4-1p; metatarsi: I v2-2-1p, II v2-2-0. Genitalic atrium ovoid; anterior genitalic process with rectangular base, extending to anterior atrial margin.

OTHER MATERIAL EXAMINED: Peru: Cusco: Río Camisea, Armihuari , 11 ° 519S, 72 ° 469W, Oct. 12, 1997, pitfall, elev. 560 m (S. Córdova, MUSM 501452 , PBI_OON 530), 28 ; Río Camisea, Cashiari 3, 11 ° 529570S, 72 ° 399020W, Nov.–Dec. 1997, elev. 690 m (J. Duárez, S. Córdova, MUSM 50148 , PBI_OON 531, 532), 18, 1♀ ; Río Camisea, Pagoreni , 11 ° 42922.50S, 72 ° 54910.70W, May 7–28, 1998, elev. 465 m (S. Córdova, MUSM 501422 , 501432 , PBI_OON 528, 529), 38, same, pitfall with bait (S. Córdova, MUSM 501420 , PBI_OON 533), 1♀ ; Torentoy Canyon, base of Machu Picchu , June 16–17, 1964, elev. 2000 m (B. Malkin, AMNH PBI_OON 37876), 18, 1♀, June 19–23, 1964, elev. 2000–2200 m (B. Malkin, AMNH PBI_OON 103), 18 .

DISTRIBUTION: Peru (Cusco).

Figures

Figs. 119–131. Paradysderina malkini, new species, male (119–125) and female (126–131). 119. Carapace, dorsal view. 120, 126. Same, anterior view. 121. Sternum and mouthparts, ventral view. 122. Left embolus, ventral view. 123. Left palp, prolateral view. 124. Same, ventral view. 125. Same, retrolateral view. 127. Abdomen, lateral view. 128. Same, ventral view. 129, 130. Epigastric region, ventral view. 131. Same, dorsal view.