Paradysderina excavata, 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 : 20-23

Paradysderina excavata , new species Figures 98–105

TYPE: Male holotype taken from litter at rotten logs from Consuelo, Manu Road, km 165, Cusco, Peru (Oct. 1, 1982; L. Watrous, G. Mazurek), deposited in FMNH (PBI_ OON 38412) .

ETYMOLOGY: The specific name refers to the medially excavated chelicerae.

DIAGNOSIS: This species is sympatric with P. consuelo , but males can easily be distinguished by the excavated chelicerae (fig. 101) and the narrow, sharply pointed prolateral flange situated at about half of the embolar length (figs. 102, 104).

MALE (PBI_OON 40807, figs. 98–105): Total length 1.50. Elevated portion of pars cephalica granulate. Chilum large, triangular. Proximal half of paturon with deep median excavation, median edge with pair of dark projections. Endites anteriorly with two short, curved, clawlike processes, ventral process enlarged. Leg spination: femora I p0-0-2; tibiae: I v4-4-1p, II v4-3-0; metatarsi: I v2-2-1p, II v2-2-0. Palps symmetrical; embolus small,

with spiniform, prolaterally directed flange at about half its length, tip hooked.

FEMALE: Unknown.

OTHER MATERIAL EXAMINED: Peru: Cusco: Consuelo, Manu Road, km 165, Oct. 4, 1982, rotten palm (L. Watrous, G. Mazurek, FMNH PBI_OON 10394), 18, same, leaf litter (L. Watrous, G. Mazurek, FMNH PBI_OON 10063), 28, Oct. 8, 1982, leaf litter (L. Watrous, G. Mazurek, FMNH PBI_OON 40922), 18, Oct. 10, 1982, leaf litter (L. Watrous, G. Mazurek, FMNH PBI_OON 40810), 18, Oct. 12, 1982, leaf litter (L. Watrous, G. Mazurek, FMNH PBI_OON 40921), 18, Oct. 13, 1982, leaf litter (L. Watrous, G. Mazurek, FMNH PBI_OON 40807), 68.

DISTRIBUTION: Peru (Cusco).

Figures

Figs. 98–105. Paradysderina excavata, new species, male. 98. Carapace, dorsal view. 99. Mouthparts, ventral view. 100. Sternum, ventral view. 101. Carapace, anterior view. 102. Left embolus, ventral view. 103. Left palp, prolateral view. 104. Same, ventral view. 105. Same, retrolateral view.