Paradysderina thayerae, 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 : 39

Paradysderina thayerae , new species Figures 254–267

TYPES: Male holotype, female allotype, and male paratype from a Berlese sample of litter taken at an elevation of 660 m at Cueva de las Lechuzas, Parque Nacional Tingo María, Huánuco, Peru (Jan. 8–13, 1983; A. Newton, M. Thayer), deposited in FMNH (44481, PBI_OON 10705) .

ETYMOLOGY: The specific name is a patronym in honor of Margaret Thayer, one of the collectors of the types.

DIAGNOSIS: Males can easily be recognized by the four prongs on the embolus (figs. 258– 261), females by the long, triangular anterior genitalic process and diamondshaped lateral genitalic sclerotizations (figs. 265–267).

MALE (PBI_OON 10705, figs. 254–261): Total length 1.44. Elevated portion of pars cephalica granulate. Chilum large, triangular. Anterior ledge on paturon with anteriorly directed, triangular projection at dorsomedian corner; inner margin flattened throughout paturon length but without distinct spines. Endites with dorsal process smaller 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 four prongs, second basalmost one much wider than others.

FEMALE (PBI_OON 10705, figs. 262– 267): Total length 1.58. Chilum small. Postepigastric scutum only around epigastric furrow, not 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, II v2-2- 1p. Genital atrium semicircular, with diamondshaped lateral sclerotizations; anterior genitalic process greatly elongated, basally triangular.

OTHER MATERIAL EXAMINED: None.

DISTRIBUTION: Peru (Huánuco).

Figures

Figs.254–267. Paradysderina thayerae, new species, male (254–261) and female (262–267). 254. Carapace, dorsal view. 255, 262. Same, anterior view. 256. Sternum, ventral view. 257. Mouthparts, ventral view. 258. Left embolus, ventral view. 259. Left palp, prolateral view. 260. Same, ventral view. 261. Same, retrolateral view. 263. Abdomen, lateral view. 264. Same, ventral view. 265, 266. Epigastric region, ventral view. 267. Same, dorsal view.